symbol with action, in a symbol

[gotoAndCrash]

The problem there is not the onEnterFrame (yes, it's possible to have what you're describing) - it's that you have a rollOver that's only present when it's parent clip is being rolled over. Some folks will say that it's possible to get a rollOver inside a rollOver, but I'm sure it's long & complicated & your problem could more easily be solved by resituating some things - mainly getting that rollOver out of that other rollOver.

Some notes on the file I have attached which is a modification of your file:
You will notice some twitchiness as this is not a "finished/polished" return. It's only a starting point for you to explore. After you look it over (& try to notice what's different) let me know of any questions you have