Hey Piotr, sorry about my even later reply,
I just tried out the package you sent me (on android first) but I’m having the same issue. The first login attempt fails saying cookies need to be enabled on your browser, the second try works. all logins work fine after that. If you delete the cookies and data from the app itself via android, the problem comes back. I don’t see any difference with the clearCache button either.
I can PM you my login information for villagemixer.com if that will help you, or you can create an account yourself, if you haven’t already of course!
thank you for your continued support in this matter.