Web services will become unavailable inside of unsupported versions of SketchUp as of the end of January each year moving forward from 2023. For the official message regarding this please visit this link: https://help.sketchup.com/en/admin/end-of-support-policy

Messages informing users will appear within the affected areas of SketchUp.
Users can dismiss this message, and it will not return until January 1st, from when it will need to be dismissed once per day until the end of service (example images below).

It is important to note that this will affect users of older perpetual licenses for extensions such as V-Ray, where the plugin does not function with newer versions of SketchUp. Contact us if you wish to upgrade to the latest version of SketchUp and/or V-Ray.