Seems to savestates don't work in Amiberry :(
State screen is saved but if i want load savestate there is nothing.
I'm using whdload versions
Savestates now working :)
After looking to the batocera github files there is amiberry path patch.
You must create directory "savestates" in /userdata/saves/amiga then saving and loading work.
In default this directory dont exist.