If you haven't the answer you need yet post an example showing the error. You've given us a good test and bad test case, but plugging those into the code you have provided doesn't demonstrate the error you assert you are getting.

CountZero's reply Re: Puzzling warning "Use of unitialized value" in very simple code gives a good framework for the test. Using 'test_Alcatel1', 'test_Algerie1' in the test list reports both passwords as weak, but no errors or warnings (as expected).

Trying trimming down the relevant bits of code to the point where you have just enough stand alone code using the two test cases provided to demonstrate the problem. If you've not found the problem by then come back and show us what you've got.