Playback not working after updating to new version of plex server

Server Version#: 1.43.2.10687-563d026ea
Player Version#: Seems to be all. The server interface it self, TV and Android tablet

So after i updated to the newest version on my pc. None of my devices. Incl. the server it self will not play any video’s at all and i mean all video’s. When attempting to play any video’ it just thinks for a good amount of time and then gives the mgs of the content not being there.
I also rescanned everything and i can see all files are there and it’s all local on the pc.
Somethings odd’s going on. Is there an easy way to revert to the older version without having to remake the hole server. I really don’t want to have to fix thumpnails for every single thing on it. As it will take days.