Many Local Organization facing the same problem in “Oops! this shouldn’t happen… Try again!”
blow steps to solve your proble.
1. Go to your Google Chrome settings
2. Type “cache” in search bar and select the Clear browsing date
3. Please choose All time in Time range And just Tick Cached images and files follow by Clear data button
once clear the cache you may try to login the jcimalaysia.cc. and you may able to see your folders and files.
Good luck 🙂