Patricia Pohan , If pins in the port are broken, it will need changed. If pins are bent you could try to straighten carefully with a tooth pick. Port is available and changeable. See the links below 1st link will show how to disassemble to get into chrome book to enable changing out the charge port at the 2nd link. If not wanting to attempt repair pop into a good local computer rpair shop and have them estimate repair. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.
Asus Chromebook Flip C100P Teardown
ASUS Chromebook C100PA Charging Port