You can manually check in the publisher whether that video file is there or not as per error, it is not there on the publisher. so you need to check the replication queue as @Vaibhavi suggested.
If there is an issue in replicating the video file along with page then you can replicate is alone.
Normally what happens in almost all the sites we have dynamic media integrated so if you have something like that then you need to verify the path of the video as well because it will not be the path of /conten/dam.
As you are saying other images are appearing fine so that will not the case in your problem.