Does anyone else get an Apache Error when trying to access the login page for schools LMS? Can login once I fiddle with the URL however it returns on a reboot.. The URL appears to be the same.

Screen shot attached.  This page appears I then change the URL  to https://plms4schools.ptc.com/precisionlms/ which immediately reverts to the original , Schools LMS : Login and I can login as usual.  If I then save that URL as a home page the next time I load IE 11 the same error appears. Any clues anyone?