Bootloop after factory resetting encrypted android phone (GT-i9060)

So, i suffer this problem after following a tutorial somewhere in XDA too, when the thread says to factory reset device to get rid of the encryption since i cant remove encryption via "Decrypt Device" button, i factory resetted the phone via TWRP 2.7.10, hoping it was fixed and its not, the phone bootloops, i tried to flash stock firmware and no luck.

Can someone give a solution for this problem?
Any suggestion will be highly appreciated.
(sorry for bad english)

Samsung Galaxy Grand Neo (GT-I9060)
Rooted.
Custom Recovery
Stock Rom
(Info in case it helps)