Redirect and "Not found" message

Periodically, when writing a message in chat or making a call, it throws to the previous page with the notification “Not found.” There are no errors in the console, and no errors in the network either.
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Hello!

What version of VitXi do you have installed?

Best regards!

VitalPBX 4.5.1-1
VitXi 4.5.0-6