Generally these kind of errors appear due to improper updates .all the plugins should be updated alltogether and then the theme.
Hi @advisera,
Please make sure that you have updated your wplms theme ,child theme of it (if using ) and all wplms and vibe plugin are updated to the latest version .
after update please re-save permalinks and clear browser cache .
Please share your admin credentials and site url
in a private reply with if above does not helps .
Hi @SuccinctDesign,
Please check the same that you have updated your wplms theme modern theme and all its plugins to the latest .And then re-saved permalinks and cleared browser cache after that .
Download the latest modern theme from here :
https://wplms.io/support/knowledge-base/modern-theme/
Please share a valid ftp credentials and admin credentials
in your own topic(create your own topic in update issues forums ) in a private reply(create topic and then share credentials in next private reply) to check the issue .