Name used as a method is not a method

You referred to something as though it were a member function or sub of a class when no such function or sub has been defined for that class. For example:

Class MyClass
End Class
Dim varV As Variant
Set varV = New MyClass
Print varV.Something("ABC")     ' Illegal: Something is not defined
                                ' as a sub or function in MyClass.

Remove the reference or define the sub or function as a member of the class.