Red line bug

Hi, 

I was working on a project and suddenly out of nothing the timeline became red and the screen dissappeared so I can't work on that project anymore. I know it seems obvious but its not a normal problem cause here're some things I tried: 

- render clips

- erase clips to the point there's only one 

- erase effects on every clips

- uninstall and install premiere

- every other thing I found online

It doesnt happen on any other project. This project its almost finished and it has worked perfect (I didnt place new videos inside of it or anything like that it just happened). 

I've been fighting this for a month if somebody could help me I'd be very gratefull.

Thanks!!