Bad serial key serious problem

Site: FamilyClix, EdenBux, EightClix
Plugin thread: [Only registered and activated users can see links. Click Here To Register...] [Only registered and activated users can see links. Click Here To Register...] [Only registered and activated users can see links. Click Here To Register...]
Script type: PTCEvolution
Problem: Other
Stage : Probably logging in
Replicating process: Just try to start it...


After I try to start my plugins, I get bad serial key information. I generated keys for all those plugins properly. And EightClix plugin worked yesterday, and today morning. After adding EdenBux I've got "Bad serial key". And after adding FamilyClix to my list, I've got Bad serial for it and for EightClix.
From now, only GrandBux of my all plugins works fine.
Any solutions?

@EDIT:

I have MC 2.4.11.
And even starting program with admin rights don't work. Physically I can login(via webbrowser) to those pages.
Editing memos don't help too.
And logging out from the account via webbrowser and via MC2 don't help too.