Solved! Can anyone help me troubleshoot my Mackie profx8v2 mixer

[Artisano79]

My child rearranged some plugs smh. 1200w amp, two modest 300w speakers. Main meters stay on 10, deafening feedback sound, faders down. Love this mixer. Rather New to audio, please help.

 

[hang-the-9]

Hard to say anything without seeing how things are wired and to what. Really can't have that many things to check, you have one amp and two speakers that is only 3 connections, read the manual and make sure they are connected to right ports. You set it up properly once already right, so must have done it once correctly.