Hello. My name is***** to JustAnswer. I'm reviewing your question now, and will post back with your reply momentarily.
Make sure you do a backup on your Mac in case the phone needs to be wiped and reset.
First, lets try this. (are you still able to charge your phone at all? It may be hardware issue
in your charger, did you try switching it out?)
Let me know what happens and we will continue. If you decide to do the 'wipe' the phone after backing it
up, you switched chargers, and the battery still will not charge, it is may be the actual battery inside (hopefully your
model of phone has a removable battery to replace)
Please rate the 5 stars at the top of the page to close out this question as it is the only way i amcredited for the work done with clients. Or, reply to continue if further troubleshooting is necessary.~Franklin