Airlines are not in the slightest bit interested in your PPL or any of its associated exams. The vast majority of airlines aren't interested in your ATPL exam results either, unless you're on a mentored or other kind of cadet scheme. All they're really interested in is that you posess the CPL or ATPL on the day you start work.
Do not dwell on past mistakes. Learn from them and make sure you don't repeat them.
Scroggs