Server will not scan media library after server update

Server Version#: 1.43.2.10687-720010687
Player Version#:
Running on Synology NAS: DS423+ Version: DSM 7.3.2-86009 Update 3

Hi, I updated the Plex server on my DNS423+ NAS yesterday and since then the ‘Scan Library Files’ does nothing.

Before the update I had added a movie and it updated the library fine.

file used to update the plex server was: PlexMediaServer-1.43.2.10687-563d026ea-x86_64_DSM72.spk

Queation: Can I downgrade to: PlexMediaServer-1.41.2.9200-c6bbc1b53-x86_64_DSM72.spk

What do I have to do?

or can you fix the problem with a new update?

Regards

Rodney