My OJS Website is not Working

I have upgraded the OJS version of the website and it is not opening now.

It shows this error when I try to access the website.

Please help.

Notice : Deprecated call without request object. in /home4/mylibvq4/public_html/bjmas.org/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1235

Notice : Deprecated call without request object. in /home4/mylibvq4/public_html/bjmas.org/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1235

Notice : Deprecated call without request object. in /home4/mylibvq4/public_html/bjmas.org/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1235

Notice : Deprecated call without request object. in /home4/mylibvq4/public_html/bjmas.org/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 1235

Warning : Cannot modify header information - headers already sent by (output started at /home4/mylibvq4/public_html/bjmas.org/lib/pkp/classes/template/PKPTemplateManager.inc.php:1235) in /home4/mylibvq4/public_html/bjmas.org/lib/pkp/classes/core/PKPRequest.inc.php on line 97

3 posts were merged into an existing topic: Config.inc.php settings and upgrade