Will not play files

As you can see the files are named correctly that were playing just fine until the update and I do not have AVI or MP4 files on the server. So I guess my only choice will be to swing all the files on my server back to external drives and then uninstall the Synology server software and start over from scratch. There is something wrong with a system that when an upgrade is issued the software that was already running stops working.plex files