Sage 2014 Filter Error - Cutomer Maint - No table entry for...

We are only on Sage 2014 for a few more no comments about how old it is..(smile)

A user created a custom filter for the Customer Maint table which included a value which is not in the UDT (user defined table) lookup

When the user clicks on the search mag glass ...error is displayed "No table entry for AR_UDT"

Assuming AR_UDT was a value the user put the filter.

For the time being, I created a new user, but is there a way to clear the filter?

Always appreciate comments