slapos_crm: return None if cannot get support_request_in_progress object

master/bt5/slapos_crm/SkinTemplateItem/portal_skins/slapos_crm_monitoring/Base_generateSupportRequestForSlapOS.py

@@ -31,8 +31,8 @@ if support_request_in_progress is not None:
 support_request_in_progress = context.REQUEST.get("support_request_in_progress", None)
 
 if support_request_in_progress is not None:
-  support_request = portal.restrictedTraverse(support_request_in_progress)
-  if support_request.getTitle() == title and \
+  support_request = portal.restrictedTraverse(support_request_in_progress, None)
+  if support_request and support_request.getTitle() == title and \
         support_request.getSourceProjectUid() == source_project_value.getUid():
     return portal.restrictedTraverse(support_request_in_progress)