"Action Failed" when "Cancel"

[an]

Hello!
I have a Macro with next actions:
OpenQuery (to ask us the file name to open)
RunApp (with path to server to open the required file)
Close (previous query).

If "OK", run fine.
If "Cancel", appear the error message menu:
Action Failed

In forms is possible to continue with "On Error Resume
Next".
With macro, how is possible to avoid this situation,
please?

Thanks in advance.
an