The migration script diagnosted some problem in my ispcp database. Found quota settings without domain (these domains was deleted early). I fixed these errors, and after the migration script try to login to the mysql with existing accounts, but can't becase the passwords are encrypted.
In the row 164 of the migration script i found "my @paths" array, and i checked that. 3 paths are corrects from 4. The first was the wrong, but I think that this variable contains every ispcp-db-key file path what ever used so i need only one for correct mysql password decription.
Have somebody an idea?