HiI solved the problem. It was in loading font nmsbd (default PLiHD font).
My skin expects that nmsbd.ttf is in /usr/share/enigma2/font folder.
Do you have it?
Do you have default pliHD skin installed?
Thank you
@Jase
Yes
yes I have default pliHD skin, and font nmsbd.ttf and I saw in crash log that loading that font causes crash. I simply changed font (direfent then default pliHD) in plugin and then when the skin was loaded, a replaced font to default pliHD because I like it.
Now it works prefectly.