There is a collection in progress for this collector. Changes are not allowed to be submitted until the collection completes.

1. Run the following query to check if there are runs marked with the IN PROGRESS state in the T_DATA_RUN_TASKS table.

   SELECT * FROM t_data_run_tasks WHERE status = 'InProgress'; 
   

2. You will see an output similar to what is shown here. This indicates there is an Identity Data Collection run in an "in progress" state from 4 July 2017. If you are getting the error while editing the collector, then it is probably because of this particular run which is in the in progress state.
   
3. Run the following query by replacing the source with the source from the above output.

   SELECT * FROM t_data_run_tasks WHERE source = 5 AND status = 'InProgress' AND 
   TYPE IN ('DataCollection', 'DataProcessing', 'DataPreProcessing', 'DataObjectProcessing', 'DataRelationshipProcessing');

4. Take note of the Run IDs and see the tasks in that collection run.
   1. Navigate to Admin > Monitoring.
   2. Select the Run ID.
   3. Scroll down to Tasks.
      
5.  Use query below to mark them as Aborted (be sure to use correct source) and commit changes. The collector should be editable after that.

   UPDATE t_data_run_tasks SET status = 'Aborted' WHERE source = 5 AND status = 'InProgress' AND 
   TYPE IN ('DataCollection', 'DataProcessing', 'DataPreProcessing', 'DataObjectProcessing', 'DataRelationshipProcessing');
   commit;