Video Filter module warning
The Video Filter module is still in alpha so it's very likely this is a bug. You should consult the issue queue to see if it exists, and create a bug report if it doesn't exist. 

As for the ignore and deploy/pursue and fix question, it depends on how fault tolerant you are. Certainly the project maintainers (and community) would appreciate the bug fix. Deploying early release code is risky, but if the functionality is little used and has no chance of catastrophic results (e.g. complex DB manipulation that could result in corruption.) then deploy/ignore can be a fine strategy (regardless, you should always have warnings turned off on production).