· After installing the new upgrade today not working on my PC used as server. The phone app is working fine, I can listen to music, I see all my collection
Unless you have another Roon server, your PC Roon server is obviously on and working. Otherwise you could not see your music or play music using your phone as a Roon client.
What seems not to be working is your PC Roon client. Have you tried rebooting your router and PC?
On your PC try shutting down Roon client and Roon server. Then start them up again. To shut down Roon server, go to lower right corner of your Windows screen and click on the upward pointing arrow, then right click on the Roon ICON.