Hi all, I'm getting this during 

DBUpdate-to-3.1.pl


 Migrated 0 articles of 0. 
done.



A field was not correctly migrated: 14 Ticket 873
  Found DynamicField value '', expected ''!
Step 7 of 22: Verify if ticket data was successfully migrated... done.



Some hints on what I have to search in db data ?