Help! Battery not charging, outlets not working when plugged in

I'm having some electrical issues. It appears my battery is not being charged when plugged into shoreline. When plugged into shoreline power I'm also only able to use outlets in the rear of the trailer. This happened after I tried playing around with the breakers and the use / store mode.



I recently replaced the converter to a three stage. How do I start troubleshooting this? Thanks!