3161539 - Not all necessary data for the process documentation could be collected, because the element of the template with id 'canvas' of type 'Template' caused an internal error.

When I generate the process documentation, I receive this error

Cause: Reason: Not all necessary data for the process documentation could be collected, because the element of the template with id 'canvas' of type 'Template' caused an internal error. You may be able to avoid the error by changing attributes of the element in the template or by removing it completely. Notify the administrator of your workspace if you don't have access to the template.

KBA , BPI-SIG-PM-DOC , Process Documentation for SAP Signavio Process Manager , Known Error