Liquid Detection- Battery Draining Issue

After the liquid detection prompt kept appearing on my Iphone ( despite it not being around water) the charging now doesn't work using USB and requires a wireless charging port. The battery is now also draining far quicker than it did before.

Are these two events related?

Also other than your steps suggested is there anything else i can do? The error message now doesn't pop up but charging doesn't seem to work.

Thanks!