Episode numbering

Hello, I have noticed that there is an episode missing from a tv series.  The result is that the following episodes are all incorrectly titled.  For example, the episode list goes from episode 3 to episode 5 (4 is missing).  The title for episode 3 is correct but the title for episode 5 is what episode 4 should have been.  Episode 6 is what episode 5 should have been, etc.  Is there any way of correcting this.  I thank you for reading this and I appreciate any help or suggestions.