After Effects keeps crashing when i try and open projects i started before i downloaded BCC

So I downloaded BCC (i think it's Boris FX or something) earlier today to enhance my current project, and when I try and open that other project this is what the preview looks like:

even though my time indicator is in the right place in the comp. Sometimes when I try and move the time indicator, that's what im met with when I click into any comp, or it crashes immediately (after effects always ends up crashing at some point)

Furthermore, when I make a new project, I run into no issues with the preview loading. only when i try and load up peexisting projects i have an issue. I have been working on my project for days and I would really hate to lose it, is there a way that I can recover it somehow? I don't want to start from scratch again....

Just for some background informatio,n this has never happened to me before today. I've had no issues with AE crashing a massive amount and I use the 2020 version.