Error 500 . Cant load anything in dashboard

Getting error 500 in service not found and config not found. Please check the pics attached for the specific problem.
Also if someone could guide me how to utilise logging to diagnose the issue. Its been really bugging me for over a week.
This is the config tab

Screen Shot 2017-10-29 at 9.06.45 PM.png2824x1354 253 KB

Please check other images here as I cant upload more than 1 image

[Album] Dream Factory images