You just unplugged a device from the audio jack

Hello,
well i got a 5.1 surround set up and it just dont seem to be working properly maybe i plugged a wire into the wrong slot i dunno...


i got it all wired up in the sub properly and in the pc i got the black wire in the blue slot green in the green slot and yellow in the pink slot

at the front i have my mic plugged into the pink slot also but my sound is only coming from 3 of the speakers i set it up to 5.1 in the sound settings and everything can anyone explain wat i am doing wrong ?

also wen im playing music i keep getting pop ups from realtek audio manager saying i have just unplugged a device from the audio jack even no i have not touched anything would appreciate it if anyone can help me with this situation thankss