I managed to fix this, but have no idea what was problem. I updated again lates mod version, and now it works fine.
On other note : in skills.txt what is 3rd parameter in rune stone skill ?
Code:
3 {
deps=1
runes=0,15,0
trade=
pars=+15,+6,+30
}
+15 =bonus runes you get when lvlup skill, +6 =hero defense , +30 =???