[OJS 3.1.0.1] blank page

i’ve some features blank page.
how i can fix it?
blank

Hi @hari_pramono,

Check your PHP error log for details.

Regards,
Alec Smecher
Public Knowledge Project Team

Hi, I have the same problem but on the login page.

The PHP error log shows something like this:

PHP Fatal error: Call to a member function getQualifiedDAOName() on null in /home/revistad/public_html/ojs/lib/pkp/classes/db/DAORegistry.inc.php on line 62
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::checkFrequency() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/plugins/generic/acron/PKPAcronPlugin.inc.php on line 315
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::_isInRange() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/classes/scheduledTask/ScheduledTaskHelper.inc.php on line 114
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::checkFrequency() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/plugins/generic/acron/PKPAcronPlugin.inc.php on line 315
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::_isInRange() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/classes/scheduledTask/ScheduledTaskHelper.inc.php on line 114
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::checkFrequency() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/plugins/generic/acron/PKPAcronPlugin.inc.php on line 315
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::_isInRange() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/classes/scheduledTask/ScheduledTaskHelper.inc.php on line 114
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::checkFrequency() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/plugins/generic/acron/PKPAcronPlugin.inc.php on line 315
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::_isInRange() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/classes/scheduledTask/ScheduledTaskHelper.inc.php on line 114
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::checkFrequency() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/plugins/generic/acron/PKPAcronPlugin.inc.php on line 315
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method ScheduledTaskHelper::_isInRange() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/classes/scheduledTask/ScheduledTaskHelper.inc.php on line 114
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method Request::getContext() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/lib/pkp/classes/plugins/ThemePlugin.inc.php on line 409
[05-Dec-2018 00:25:00 America/Montevideo] PHP Deprecated: Non-static method PKPRequest::_checkThis() should not be called statically, assuming $this from incompatible context in /home/revistad/public_html/ojs/classes/core/Request.inc.php on line 68
[05-Dec-2018 00:25:00 America/Montevideo] PHP Strict Standards: Declaration of CustomBlockPlugin::getSeq() should be compatible with BlockPlugin::getSeq($contextId = NULL) in /home/revistad/public_html/ojs/plugins/generic/customBlockManager/CustomBlockPlugin.inc.php on line 130
[05-Dec-2018 00:25:00 America/Montevideo] PHP Strict Standards: Declaration of CustomBlockPlugin::getBlockContext() should be compatible with BlockPlugin::getBlockContext($contextId = NULL) in /home/revistad/public_html/ojs/plugins/generic/customBlockManager/CustomBlockPlugin.inc.php on line 130
[05-Dec-2018 00:25:00 America/Montevideo] PHP Strict Standards: Declaration of CustomBlockPlugin::getEnabled() should be compatible with BlockPlugin::getEnabled($contextId = NULL) in /home/revistad/public_html/ojs/plugins/generic/customBlockManager/CustomBlockPlugin.inc.php on line 130
[05-Dec-2018 00:25:00 America/Montevideo] PHP Strict Standards: Declaration of CustomBlockPlugin::getContents() should be compatible with BlockPlugin::getContents($templateMgr, $request = NULL) in /home/revistad/public_html/ojs/plugins/generic/customBlockManager/CustomBlockPlugin.inc.php on line 130
[05-Dec-2018 00:25:00 America/Montevideo] PHP Strict Standards: Declaration of ArticleHandler::authorize() should be compatible with PKPHandler::authorize($request, &$args, $roleAssignments, $enforceRestrictedSite = true) in /home/revistad/public_html/ojs/pages/article/ArticleHandler.inc.php on line 19
[05-Dec-2018 00:25:00 America/Montevideo] PHP Strict Standards: Declaration of ArticleHandler::initialize() should be compatible with PKPHandler::initialize($request, $args = NULL) in /home/revistad/public_html/ojs/pages/article/ArticleHandler.inc.php on line 19
[05-Dec-2018 00:25:00 America/Montevideo] PHP Strict Standards: Declaration of PublishedArticleDAO::getBySetting() should be compatible with ArticleDAO::getBySetting($settingName, $settingValue, $journalId = NULL, $rangeInfo = NULL) in /home/revistad/public_html/ojs/classes/article/PublishedArticleDAO.inc.php on line 20