Error when delete row from location table

Hi, 

Navision allowed me to  create a new location with Code that has length  more than 10 chars (Code field type :  Code20), after that i decided to delete this record and i get this error : A value in the filter 'DEC-CONTANT' in the location code field in the Warehouse Activity Line Table in too long for the field type.

Type : Code10.

How can i fix this problem please without changing the length in other table ?

Regards ;