my iphone 6 wont connect to itunes ; error (14)

my iphone 6 screen was not repaired by apple, so the screen isnt original ,it is blocked and wont connect to itunes; it keeps saying error(14) ; half way through.I recently visited a genius bar in france, as I am on holiday and they said because the screen is not an original their hands are tied, they cant do anything about it. Iphone 6+ is very expensive and I feel like my money has just gone to waste; I am now phoneless abroad with no form of contact or money to buy a new iphone. Please help me; Ive tried conecting to itunes on different devices, it still wont work.😟