Fatal errors occuring
We are aware of this situation and are working hard to resolve it as soon as possible.
The error is not in our code, it is actually an error on YouTubes behalf, they’re not parsing the correct parameters to our conversion tool, hence the errors you are seeing.
We are working quickly on a patch to fix this and eliminate any errors in the future, we will update you when this has been implemented.
Most videos will convert perfectly with out no error occuring, just a select few are having difficulties.
Regards.