Server error (500) on SOME files, not all

This has been happening the past 4 days and this really affects my work. Does anyone else have ever experienced these kind of errors? These only affect specific files, not all. Some files still load just fine, but others either hit one of these 3 walls, or stuck in an infinite loading state. The white state only appears on Browser (Im on mac) and the other two error states happen when I use the mac app.