Hi my lead salesman is getting this error when trying to reassign a salesperson to a lead:'

Error running count query for Lead List: Query Failed:SELECT count(*) c FROM leads LEFT JOIN users ON leads.assigned_user_id=users.id LEFT JOIN leads_cstm ON leads.id = leads_cstm.id_c where (leads.assigned_user_id in ('9b092099-3f30-3b08-a7b9-467941b140ed') and leads.assigned_user_name like 'Terry%') AND leads.deleted=0 ::MySQL error 1054: Unknown column 'leads.assigned_user_name' in 'where clause'
Has anyone else ran into this problem? If so, did you find a solution to it? Thanks!

Tim