Can’t access ful dashboard

Hi,

I’ve got an issue from my WordPress Dashboard. I can still access the LMS settings, courses category, questions category, instructor requests, addons and upgrade section, but if I try to go to courses, lessons, quizzes or questions (so basically anything to add content), wordpress crashes and gives me an error message:

“There has been a critical error on this website. Please check your site admin email inbox for instructions.

Learn more about troubleshooting WordPress.”

The thing is , I don’t get any emails regarding this and the troubleshooting page doesn’t help either. Do you have any idea what might be causing this?

Thankfully, existing courses are still working fine on the site but I can’t publish or update any content, which is troublesome, obviously.