Error when upgrade to OJS 3.1.1.4

Software Support
1

Deprecated : Non-static method Application::getName() should not be called statically in /home/dralf/public_html/jr/lib/pkp/classes/install/form/InstallForm.inc.php on line 149

Deprecated : Non-static method VersionCheck::getCurrentCodeVersion() should not be called statically in /home/dralf/public_html/jr/lib/pkp/classes/install/form/MaintenanceForm.inc.php on line 37

Deprecated : Non-static method PKPRequest::getUserVar() should not be called statically in /home/dralf/public_html/jr/lib/pkp/classes/form/Form.inc.php on line 369

Deprecated : Non-static method PKPRequest::_checkThis() should not be called statically in /home/dralf/public_html/jr/lib/pkp/classes/core/PKPRequest.inc.php on line 592

what must I do?:thinking:

2

http://jr.pulmoua.com/index.php/index/install

3

You’ll want to turn off display_errors in config.inc.php for any production site. These notices are really only helpful for developers.

4

thank you for your help