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This error is related to a known issue (ID: 751448), which has been fixed in later releases. Upgrading should resolve the issue.
Information detailed and sourced from here: Error "uncaught TypeError: tabBootstrap.ViewerBootstrap.get_instance(...).get_sessionBeingCleared is not a function" and…
Thanks for providing screenshots and written text of the error message! It allowed me to help find this information and is greatly appreciated.
Thank you Patrick