so where do i reset the gamepassword? xD feel like an idiot now .-.-

Hello guys an girls,
i have not played for a while, and now that i finally want, the game refuse.
it says that i have the s2, but the game says i have the wrong gamepassword.. I have allready change`d it. and that did not work.
any ideas?
tnx anyhow peace k.o.p racing