Undefined Index error

[sid90]

I am getting the following error when I try to update or add contents to alfresco via drupal.

Notice: Undefined index: workspace://SpacesStore/2e3ea968-07ec-48c8-8295-80bfbef554d6 in CMISService->getLink() (line 421 of /home/drupal/myra/sites/all/modules/contrib/cmis/cmis_common/lib/cmis_repository_wrapper.php).
HTTP call to [http://myra-dev-repo.bmi.utah.edu:80/alfresco/service/cmis/s/workspacepacesStore/i/2e3ea968-07ec-48c...] returned [500]. Response: Web Script Status 500 - Internal Error Web Script Status 500 - Internal Error The Web Script /alfresco/service/cmis/s/workspacepacesStore/i/2e3ea968-07ec-48c8-8295-80bfbef554d6/content has responded with a status of 500 - Internal Error. 500 Description: An error inside the HTTP server which prevented it from fulfilling the request.   Message:11212017 Failed to execute transaction-level behaviour

I understand that the problem is with the getLink() method which is returning an index of the workspace where the data needs to be saved.But I am unable to figure out where the change has to be made.Moreover this is a new error that has popped up recently.I remember not changing/updating anything : - ( drupal or alfresco setup) that was working just fine. Please let me know what is going wrong.Thanks. 

[jpotts]

Could there be a rule or a behavior on that folder that is misbehaving?

Jeff