Error Call to a Member Function getcollectionparentid() on Null
Understanding the Error Encountering the error message “error call to a member function getcollectionparentid() on null” can be frustrating, but object-oriented programming is not uncommon. This error suggests that an attempt was made to invoke a function, getcollectionparentid(), on a null object. In simpler terms, you tried to use an object that hasn’t been initialized…