A student emailed to inform that anytime she accesses any of the links in one of her classes - she receives an 'HTTP Error 500.0 - Internal Server Error'. The detailed description of the error is 'The Fast CGI process has failed frequently recently. Try the request in a while'. I am able to impersonate her Moodle user account when logged in as the Administrator and I am able to recreate this error fairly consistently by clicking the homework links in that class. She is using MacOS and has experienced the problem on both Safari and Chrome.
Even when logged in as the Administrator (not impersonating any user accounts) - I received this same error when clicking on the Participants link for this particular class. Overall, we do not have any widespread issues being reported by our students. I have checked in with the Instructor of this class to find out if any other students have reported the problem and he stated none have reported it.