Can’t activate Members since the latest update

What’s good,

I’ve been using this awesome plugin for a web service we’ve built for the family business and it was working perfectly until the latest update.

With this new update if I replace the files of the old version with the files of the new one (without deactivating) I get an Error 500.

As soon as I try to activate the plugin (if previously it were deactivated) it throws an “Unexpected Error” on “/inc/class-capability.php” on Line 13 (where the namespace).

Does anybody knows why I’m getting this weird error? It was working perfectly until the latest update ??

Thank you so much,
C.