The communication between the extensions and your Roon core is unstable, communication with the core often drops and there are crashes of the Roon API.
What does your setup exactly look like? I see that there are 2 SHUBERTs around. What roon applications do you run on your Windows PC, only the all-in-one Roon application or the separate server and remote? Is the old PC still connected in the system?
Edit:
The crashes are very similar to the one reported in this thread:
Please perform the steps for reconfiguring the firewall, as described by @DrCWO.