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I receive this error
Had it working on 1 PC for 2 days then it started doing the same thing,
Looking at the URL it appears to be Creo view. It might be related to unsigned add ons - https://support.ptc.com/appserver/cs/view/solution.jsp?n=CS237817 or https://support.ptc.com/appserver/cs/view/solution.jsp?n=CS220771