2.4l transmission

May I get some assistants please. My ‘13 2.4L is leaking from the transmission. I changed the oil a day ago and now there’s a leak from a port under the driver side brake line that I’ve never seen before, should there be a bolt there or something else?

I have seen a lot about this but no answers really. My avenger is stuck in limp mode. Or won't shift out of first. It runs fine when it is cool and shifts. But after it heats up it will not shift if I slow below 20 or stop. I have two codes. P0700 and P0755. I replaced the speed inputband...