Router.invalidParameterType error if podcast name is not well formated

Hi,

I just installed the last build (55) and when I wanted to create a podcast I got this error :

It took me hour to find that it was my podcast name the problem :

As soon as I change it to formatalk1_qualiostory it run well.

It would be better to check and warn user in front :)

Thanks for yout great job anyway !