Site needs a new look for technical reasons

Hello all, something is eating my menu structure on the right side of my pages, and I don’t know what. I even restored to a previous version, it lasted like a few days, then bam, gone. So over the next few days, I’m going to try some new themes from WordPress and find something that works. All posts and the page will be usable, it just may look funny… Please excuse the mess, I have to quickly make thumbnails and headers for every post…