Updated the new Mac OS and beta freezes when I click in timeline

I had a project nearly finished and then beta just stopped working. I used enhance on most of the audio clips and assuming that might be the issue but haven't found a resolution yet. When I tried exporting I get the below message.  Not sure where to go from here. I've tried copying the project, starting a new project, creating a new timeline and copying the files. I've tried deleting the cache and the folders in the common folder. Restarting the computer multiple times.