Metabox plugin suddenly causing error – PHP Fatal error: Class 'RWMB_Update

Hi guys,

I hope all is well!

I had a clients website suddenly break after a few updates were made. After disabling plugins one-by-one and looking at the Debug Log file I have noticed that for some reason METABOX seems to be an issue.

My knowledge of PHP, classes and how these interact and work together is very limited to a Apologize for this in advance. Is there something I need to update, roll-back and change to fix this error?

I have temporarily disabled the METABOX plugin through cPanel to make the website viewable, but when I enable the plugin again the site becomes “temporary unavailable”

Please help!

This is the main error I am getting:

[19-Feb-2020 21:21:38 UTC] PHP Fatal error: Class 'RWMB_Update_Option' not found in /home/skillsns/public_html/wp-content/plugins/meta-box/inc/loader.php on line 105

The page I need help with: [log in to see the link]