why?????

Hello Lizz,
there are many reasons why this error appears:
- You have to disable any AdBlocker or something similar to this
- JavaScript should be enabled in your Browser
- Your E-Mail adress have to be confirmed
- You have to register a NEW account for Bananatic. So dont use any Accounts, that you used to play before you registered it at Bananatic.
more reasons can be found here:
https://www.bananatic.de/forum/thread/thema-aufgabe-1-schaltet-sich-nicht-frei-2550/
If nothing helps you, please write a Support Ticket. There you'll get some more informations.
Greetings Noxtrus