Arduino send MIDI to FL Studio over a MIDI to USB Converter Cable

So today i built up the circuit and plugged the cable this time right into the socket. Still nothing has worked, so i then i decided to open up the circuit of USB Converter cable cause i read in internet that some parts maybe miss in it or arent done right. I bought the cable off amazon for a really low price, and i just read more people had the problem that they cant send any midi messages but can see the driver on the PC. And as i just opend it up i have seen there are 5 connections on one side but one is missing kinda the Ground Cable is missing? Here a picture of it:

So i kinda guess its not working because of that? You can see on the left side of the circuit there is a nothing on the "G" Pin