Forum help - layout is now unreadable

I have had this plug in for a while, working well until today - I think - not sure of the exact time things changed. But now my forum looks like the screen shot. The forum is horizontal and un-readable.

I even deleted the plugin and BOUGHT another download thinking I had some old file or corrupt file, but it didn't re-install. I didn't go into files and delete and try a full re-install... not sure how to go about that.

On the dash board it did give me an option to reinstall, which I did; but I think it just reactivated what I thought I had deleted from my plugins since somewhere the files still existed. My old forum is still set up. So not sure what to do. This is a protected page, but has been all along. The only that that changes was my theme updated - avada theme.