ojs2 has produced an error
  Message: WARNING: imagefttext(): Could not find/open font
  In file: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php
  At line: 98
  Stacktrace: 
   File: (unknown) line (unknown)
     Function: PKPApplication->errorHandler(2, "imagefttext(): Could not find/open font", "/home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php", 98, Array(11))
   File: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php line 98
     Function: imagefttext(Resource(), 21, 14, 35, 51, 13147547, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", "4")
   File: /home/ojs2/ojs2/pages/user/UserHandler.inc.php line 487
     Function: CaptchaManager->generateImage(Object(Captcha))
   File: (unknown) line (unknown)
     Function: UserHandler->viewCaptcha(Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPRouter.inc.php line 362
     Function: call_user_func(Array(2), Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPPageRouter.inc.php line 220
     Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False)
   File: /home/ojs2/ojs2/lib/pkp/classes/core/Dispatcher.inc.php line 134
     Function: PKPPageRouter->route(Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php line 178
     Function: Dispatcher->dispatch(Object(Request))
   File: /home/ojs2/ojs2/index.php line 64
     Function: PKPApplication->execute()
  Server info:
   OS: Linux
   PHP Version: 5.6.40-82+0~20250703.100+debian12~1.gbp3f56ba
   Apache Version: N/A
   DB Driver: mysql
   DB server version: 10.11.11-MariaDB-0+deb12u1<br/>
ojs2 has produced an error
  Message: WARNING: imagefttext(): Could not find/open font
  In file: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php
  At line: 98
  Stacktrace: 
   File: (unknown) line (unknown)
     Function: PKPApplication->errorHandler(2, "imagefttext(): Could not find/open font", "/home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php", 98, Array(11))
   File: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php line 98
     Function: imagefttext(Resource(), 23, -11, 62, 45, 13147547, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", "7")
   File: /home/ojs2/ojs2/pages/user/UserHandler.inc.php line 487
     Function: CaptchaManager->generateImage(Object(Captcha))
   File: (unknown) line (unknown)
     Function: UserHandler->viewCaptcha(Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPRouter.inc.php line 362
     Function: call_user_func(Array(2), Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPPageRouter.inc.php line 220
     Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False)
   File: /home/ojs2/ojs2/lib/pkp/classes/core/Dispatcher.inc.php line 134
     Function: PKPPageRouter->route(Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php line 178
     Function: Dispatcher->dispatch(Object(Request))
   File: /home/ojs2/ojs2/index.php line 64
     Function: PKPApplication->execute()
  Server info:
   OS: Linux
   PHP Version: 5.6.40-82+0~20250703.100+debian12~1.gbp3f56ba
   Apache Version: N/A
   DB Driver: mysql
   DB server version: 10.11.11-MariaDB-0+deb12u1<br/>
ojs2 has produced an error
  Message: WARNING: imagefttext(): Could not find/open font
  In file: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php
  At line: 98
  Stacktrace: 
   File: (unknown) line (unknown)
     Function: PKPApplication->errorHandler(2, "imagefttext(): Could not find/open font", "/home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php", 98, Array(11))
   File: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php line 98
     Function: imagefttext(Resource(), 23, 7, 89, 51, 13147547, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", "J")
   File: /home/ojs2/ojs2/pages/user/UserHandler.inc.php line 487
     Function: CaptchaManager->generateImage(Object(Captcha))
   File: (unknown) line (unknown)
     Function: UserHandler->viewCaptcha(Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPRouter.inc.php line 362
     Function: call_user_func(Array(2), Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPPageRouter.inc.php line 220
     Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False)
   File: /home/ojs2/ojs2/lib/pkp/classes/core/Dispatcher.inc.php line 134
     Function: PKPPageRouter->route(Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php line 178
     Function: Dispatcher->dispatch(Object(Request))
   File: /home/ojs2/ojs2/index.php line 64
     Function: PKPApplication->execute()
  Server info:
   OS: Linux
   PHP Version: 5.6.40-82+0~20250703.100+debian12~1.gbp3f56ba
   Apache Version: N/A
   DB Driver: mysql
   DB server version: 10.11.11-MariaDB-0+deb12u1<br/>
ojs2 has produced an error
  Message: WARNING: imagefttext(): Could not find/open font
  In file: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php
  At line: 98
  Stacktrace: 
   File: (unknown) line (unknown)
     Function: PKPApplication->errorHandler(2, "imagefttext(): Could not find/open font", "/home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php", 98, Array(11))
   File: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php line 98
     Function: imagefttext(Resource(), 29, -8, 119, 45, 13147547, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", "z")
   File: /home/ojs2/ojs2/pages/user/UserHandler.inc.php line 487
     Function: CaptchaManager->generateImage(Object(Captcha))
   File: (unknown) line (unknown)
     Function: UserHandler->viewCaptcha(Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPRouter.inc.php line 362
     Function: call_user_func(Array(2), Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPPageRouter.inc.php line 220
     Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False)
   File: /home/ojs2/ojs2/lib/pkp/classes/core/Dispatcher.inc.php line 134
     Function: PKPPageRouter->route(Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php line 178
     Function: Dispatcher->dispatch(Object(Request))
   File: /home/ojs2/ojs2/index.php line 64
     Function: PKPApplication->execute()
  Server info:
   OS: Linux
   PHP Version: 5.6.40-82+0~20250703.100+debian12~1.gbp3f56ba
   Apache Version: N/A
   DB Driver: mysql
   DB server version: 10.11.11-MariaDB-0+deb12u1<br/>
ojs2 has produced an error
  Message: WARNING: imagefttext(): Could not find/open font
  In file: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php
  At line: 98
  Stacktrace: 
   File: (unknown) line (unknown)
     Function: PKPApplication->errorHandler(2, "imagefttext(): Could not find/open font", "/home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php", 98, Array(11))
   File: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php line 98
     Function: imagefttext(Resource(), 28, -11, 139, 47, 13147547, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", "6")
   File: /home/ojs2/ojs2/pages/user/UserHandler.inc.php line 487
     Function: CaptchaManager->generateImage(Object(Captcha))
   File: (unknown) line (unknown)
     Function: UserHandler->viewCaptcha(Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPRouter.inc.php line 362
     Function: call_user_func(Array(2), Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPPageRouter.inc.php line 220
     Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False)
   File: /home/ojs2/ojs2/lib/pkp/classes/core/Dispatcher.inc.php line 134
     Function: PKPPageRouter->route(Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php line 178
     Function: Dispatcher->dispatch(Object(Request))
   File: /home/ojs2/ojs2/index.php line 64
     Function: PKPApplication->execute()
  Server info:
   OS: Linux
   PHP Version: 5.6.40-82+0~20250703.100+debian12~1.gbp3f56ba
   Apache Version: N/A
   DB Driver: mysql
   DB server version: 10.11.11-MariaDB-0+deb12u1<br/>
ojs2 has produced an error
  Message: WARNING: imagefttext(): Could not find/open font
  In file: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php
  At line: 98
  Stacktrace: 
   File: (unknown) line (unknown)
     Function: PKPApplication->errorHandler(2, "imagefttext(): Could not find/open font", "/home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php", 98, Array(11))
   File: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php line 98
     Function: imagefttext(Resource(), 27, 6, 175, 41, 13147547, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", "P")
   File: /home/ojs2/ojs2/pages/user/UserHandler.inc.php line 487
     Function: CaptchaManager->generateImage(Object(Captcha))
   File: (unknown) line (unknown)
     Function: UserHandler->viewCaptcha(Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPRouter.inc.php line 362
     Function: call_user_func(Array(2), Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPPageRouter.inc.php line 220
     Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False)
   File: /home/ojs2/ojs2/lib/pkp/classes/core/Dispatcher.inc.php line 134
     Function: PKPPageRouter->route(Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php line 178
     Function: Dispatcher->dispatch(Object(Request))
   File: /home/ojs2/ojs2/index.php line 64
     Function: PKPApplication->execute()
  Server info:
   OS: Linux
   PHP Version: 5.6.40-82+0~20250703.100+debian12~1.gbp3f56ba
   Apache Version: N/A
   DB Driver: mysql
   DB server version: 10.11.11-MariaDB-0+deb12u1<br/>
ojs2 has produced an error
  Message: WARNING: Cannot modify header information - headers already sent by (output started at /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php:381)
  In file: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php
  At line: 113
  Stacktrace: 
   File: (unknown) line (unknown)
     Function: PKPApplication->errorHandler(2, "Cannot modify header information - headers already sent by (output started at /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php:381)", "/home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php", 113, Array(13))
   File: /home/ojs2/ojs2/lib/pkp/classes/captcha/CaptchaManager.inc.php line 113
     Function: header("Content-type: image/png")
   File: /home/ojs2/ojs2/pages/user/UserHandler.inc.php line 487
     Function: CaptchaManager->generateImage(Object(Captcha))
   File: (unknown) line (unknown)
     Function: UserHandler->viewCaptcha(Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPRouter.inc.php line 362
     Function: call_user_func(Array(2), Array(1), Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPPageRouter.inc.php line 220
     Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False)
   File: /home/ojs2/ojs2/lib/pkp/classes/core/Dispatcher.inc.php line 134
     Function: PKPPageRouter->route(Object(Request))
   File: /home/ojs2/ojs2/lib/pkp/classes/core/PKPApplication.inc.php line 178
     Function: Dispatcher->dispatch(Object(Request))
   File: /home/ojs2/ojs2/index.php line 64
     Function: PKPApplication->execute()
  Server info:
   OS: Linux
   PHP Version: 5.6.40-82+0~20250703.100+debian12~1.gbp3f56ba
   Apache Version: N/A
   DB Driver: mysql
   DB server version: 10.11.11-MariaDB-0+deb12u1<br/>
�PNG


IHDR
,d�c��	pHYs��
�+	�IDATx�흿kVW�O�A�B�!���b-�:��,� :��K	�PqjG�/2�S�`��(
f]�dȠ6$�d�A���v�/���q���<�<�9�g��}�{�����<��>���.7����y�����ݝ��!T�9q�ã�g���7��#l*��_rcu�|��+J����G��wIU��3����<����W������{����\�9�+�#�\<|����7lߒ�~�Z��k&/[����dԽ�����^W����!?_�����_�΄u�>̎�����{�8,V��^�_Q{���-��W��a�5��HHƚ�Ah21��y�^?���:��M��3�O�o�;�B����OZn��z��}:��J�#��S����B1P����i��w=�@D����P�qo�u��,$�C�Mhل�N&$�	�����G��q!ȷ��+����)�Y�aR�gΎ"��Zs\���ێΟ�����3�.����g!���4����PG�	�a�}b��R��M8~<r��H@���F�hu�GQ ��F�9���gh�{��ا0p�W�Hs�1�?=��+Z��FK��w�~��D��h�T���aUmi�r�<�Y�	/>�̎�>mҙ�;k���?�������U��+�D�b�P;��W3W�U�(�E�á�ſ���w���@Ce�Ι��$�L�l�{ eSU�zdXۄa�����U�1�4
/HÎ��C*ѡ��|�ǪH5�J��/a7+z�I&a2��vT���ɧ��Av	Rͯ@��W�R爆(���
z�/�B��-x��r�ӱ�擃`
4	������Uӕpvasks�䕶�/M4��p�Pl*.��lG#���N���L��tVqV`��EwiXD���l&`��QJ���Iָmk;�αօ�
��N�X+a
TJ!)м;V
x��w�
T�Ѡ	� bvBV���-�4�Ƕ�DH�-qJ�V�d^YVЌ'�oe��i���D�ap���Q���j�!���L�Z6����z��MX��§t�Mv1��,Y�Q`&B�2݊�LJ��a�xD0)�b�����蠬��D�m�\J��- ���S����<�ڊ�ӿU�2E˟���e�y�G�B���,&N�>�!!��nj����ש�1`(��CY�Z�Х@��T�@��E�R^�+�s��Jh��@�V����rE������[	1`Z�j!k)/`VB"m�Mh
	pT����uP��6���Ϥ[��WBMgx� ��%@}%�@�
���Z �*�E+TC";fX�z����in5
9$���@��;�jm�op����
��!��b��w7��0PF�Y��(�R����(�dU�
�FO'�0?C"Z��US��s���;�6��+�[+ι���E��lNm�΂<����: �kj|�Z敢�6!�4.̍����9�%��v�\��bHv�`n� )��~��
�C�J�z�sf`H�	3�v��9�.�L�!)�f�S�u}�w�Ȭ]֞m����.�U�6�M�]���Zr1�}��@�
}4UD��[��
�>$Zh�)�r�06	�&�u����#�T���I���1c8��F�����R���*0��&4T��R�v�=�~��%���5�v��R�7FĀYu?�Z�"ϡ�BD�':T�>�����+]Fs����( �M�i�:o#���	��T6�	���W���w�t9�x�yPm!rs���r��5HX���nJ��0C�d�n���HD9��aj����u�{Z�2ڎ�%.���֐�z����5�ͻY|:ݕP��@W���	�3��S\�`��.�|������E�_
v�z�#��ʄ�o&���q��k
��X�.	F���sG����_9��<��3!���!G��R�d�C�Õy|�M���
iZA��J�_y TAR `v�(�#b���gW��c$@pk��4��1�z��Dz�Uh[���m�dD:��/e������Zhv�QlSOe>������Zh�>�T ����S�1���H����|�TB�!��]��M2�e���jZ�	,v�!��+��n��ȡ�@e�2��cl>��0�X	���:4B+!q����ا����O��Z��/$T1%6�����b�Q���D�Ԡ��o�q&��h�ơ�AQ�М	v/y:�ɉЇ��
�p6�&uj��Q�Q�}�чlVB�1����d��;M��v%��ݏ[oEy
��^)���U�{��aܛ��jn��-�1��MI'�R^��w����ق����dW�ϙ�8V2T�����8�Y_���j<#7U'�����؄�eM>��&r&L����c�*P�=���@����H7YZ��5t�9fL���>���^v�~�{2
�5	���s��	Q`�}b���E`�[��JHyП(P���e�?F�F���IEND�B`�