믿에 있는 Error message가 나오는데 혹시 어떻게 해결을 해야하는지 알려주시면 감사하겠습니다.

The Expression On Load you entered as the event property setting produced the following error:
*The expression may not result in the name of a macro, the name of a user-defined function, or Event Procedure.
*There may have been an error evaluating the function, event, or macro.