@GeorgSeifert My main problem is solved which was the outlines. The second one is about naming glyphs. As I’ve named “Dammatan” as “2pesh”, “Kasratan” as “2zer” and “Fathatan” as “2zbr”. This names create errors in font features.
So what is the solution?? OR
How do I rename them in Glyphs app??
I had changed them in FontCreator and there was no problem at all. I exported OTF and it worked great. When I opened the .glyphs file it has the same names as in FC but it got feature error.