Don’t pan hard left or right when there is one guitar, or pan the acoustic guitar hard left/right to provide balance, but that will require more volume from the acoustic guitar and probably more careful EQ
Too much reverb or delay on vocals. They did not sound up front enough.
I think the vocals are picking up reverb from the band bus reverb send. You can hear reverb being added when they are all singing loudly. Solution could be to create a separate vocal bus with its own or no additional reverb send