Hello Dear Team,

After I have updated my website(integrated with YT frame work and other SJ Plugins) to Joomla 3.9.0, our website is giving some errors as mentioned below;

Warning: require_once(/home/testactief.nl/public_html/libraries/joomla/filesystem/folder.php): failed to open stream: No such file or directory in /home/testactief.nl/public_html/plugins/content/relatednews/core/helper_base.php on line 11

Fatal error: require_once(): Failed opening required '/home/testactief.nl/public_html/libraries/joomla/filesystem/folder.php' (include_path='.:/usr/share/php') in /home/testactief.nl/public_html/plugins/content/relatednews/core/helper_base.php on line 11

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; YtFrameworkTemplate has a deprecated constructor in /httpdocs/plugins/system/yt/includes/site/lib/yt_template.php on line 16

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; YtFrameworkRenderXML has a deprecated constructor in /httpdocs/plugins/system/yt/includes/site/lib/yt_renderxml.php on line 13


Please help me with the proper solution ASAP. Your immediate support would be highly appreciated.

Awaiting reply. Thanks a lot!

Regards,
Meavin