I_HATE_WIRES

Hi,
first time posting. I'm having alot of trouble with my 2010 E61 ever since I replaced both tailgate harnesses. The tailgate wont open with the tailgate handle at the back but will with both the keyfob and cab buttons. Also getting the "boot open" warning message even though both the tailgate and the glass are closed. Logically thinking I messed up the harnesses but I'd perfer to fix only the side with the issue and I dont know which side it is. The handles wires go to the right and the locks wires to the left. Any help is appreciated, I'm at my wits end! (English is not my native language so ignore any spelling mistakes)