Start by looking at the actual line it reports the error on: that should give you a big clue!
If it's the first line, it could be that App.Path doesn't exist (it isn't in the MSDN list of App object properties for vB6:
https://msdn.microsoft.com/en-us/library/fc353bw2(v=vs.90).aspx[
^]), or it could be that databasename is invalid.
Then look at the class definition for the db_employee variable and check that the databasename, RecordSource and Refresh properties / method exist for that class.
We can't do that for you: we just don't have any context for that code fragment!