VMs wont start / cannot connect to qrexec agent

After I restarted my computer my VMs wont start anymore. I see an error that after a timeout of 60s cannot connect to qrexec agent. I cant even start a terminal in a template VM. Only in dom0. How can I fix this?

Maybe it’s a problem with SELinux relabeling:

I fixed it be changing the template of all my VMs