Sometimes when refreshing a Data Validation, it can get stuck or time out and throw an error. 

The errors can include the following:

"There was an error refreshing the results. Please try again."

"This Validation Group is currently being refreshed for the current school. Please wait."

"Stuck processing..." 

Solution

This will need to be manually refreshed in SQL. Below is the Query used to clear the error. 

SELECT * FROM DPT WHERE NM LIKE 'DATAVALIDATION_GUID_REFRESH%'  AND CD <> ''
UPDATE DPT SET CD = '' WHERE NM LIKE 'DATAVALIDATION_GUID_REFRESH%'  AND CD <> ''

After running the SQL query, the results will need a manual refresh in Aeries.