It's strange because i didn't anything..Boh
By the way i fixed the problem using the .deb file. Thank you!
But i still have the problem with only 1 CPU online.
Do you see 2 CPUs in "htop"?
apt-get install linux-u-boot-bananapi-next
Before i was using "linux-u-boot-bananapi". Probably this was my fault. Maybe i did some mess some time ago..
(But maybe this can be checked in the script too..)