Dear User,
You are not following the steps for 4.0 properly
checked your site and found 4.0 is activated but plugins vibebp and wplms are not installed
The old plugins are still activated. So it will definitely mess up everything if you will not follow the instructions properly
First, install the above two plugins and then deactivate: vibe course module, vibe custom types, vibe shortcodes, wplms dashboard, wplms frontend
and then ping us here, so I will check this redirection issue
Make sure to check this FAQ section as well:
https://wplms.io/support/knowledge-base/wplms-4-0-faqs/