Messed up documents

I made the mistake of downloading latest 5.0 version of Libre Office and now documents I had written before come out totally messed up when I try to print or email but if I cut and paste here they don’t. If I cut a good one and create another Libre Document and try to print it it comes out messed up in just the middle.

What do I do? Certainly not donate

Are you working with ,odt files? Or .doc files?