Encountering an HTTP 500 Error – Potential Issue with an Invalid Plugin

I’ve come across an HTTP 500 error on my website, and my hosting provider suggested that it might be linked to an invalid plugin. I’m reaching out for assistance in identifying and resolving this issue. Could you please provide guidance on the steps I can take to pinpoint the problematic plugin responsible for the error? Additionally, any insights on how to rectify the situation and restore the functionality of my website would be highly appreciated. Thank you for your assistance.

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