I have Service Test 11.2 and I am trying to run a test from ALM 11 sp3. When I click on the Run button I get a red message box that says "Class not Registered

I have Service Test 11.2 and I am trying to run a test from ALM 11 sp3. When I click on the Run button I get a red message box that says "Class not Registered

Is there a way to do this: I have a test step that executes a SELECT statement against a database. One of the columns in the results set is a number represented in the database as a VARCHAR data type. I want to convert it to an integer and test if it is greater than some number. How do I do this in ...