i deleted code that shows comments

i’m using the sg/dark 1.0 preinstalled theme from an autointstall

at some point, i was screwing around with meta placement, and i believe i deleted my blog’s ability to show comments and the comment form. (when I click “no comment” to add a new one, the box doesn’t show up on the right-hand side as it should)

can anyone point me to the line of code that will set me back on track? thanks!