Uncaught SyntaxError: Unexpected token => [PROJECT'S PATH]/js/plugins/FELSKI_TECHTREE.js:4422
Past that crash, for example the demo, works just like vanilla MV with Yanfly's plugins.
Honestly, I use most of them, but I only tested it on the 1.0.1 version of MV. The lastest in this site for the plugin.
Still, if instead of launching it from rpg maker I set it on htdocs and play it from there, the console says the same and the game goes alike.
I think I figured out the reason for the crash. I just released an update that should get rid of the crash. Alternatively, you could check if you have classes that have trees assigned that don't exists. Remove the skilltree notetags for these classes and the game should start.