Couldn't update; currently locked. (Error 3218)

You tried to update data that is located on a page that is currently locked.

Possible causes:

• You tried to save a query that is being used by someone else. To save your query, wait for the other user to finish or enter a different name, and then try the operation again.
  
  
• You tried to use the Edit method on a data page containing a record that is already open or locked.