Where did you buy the charger?
There are quite a few knockoffs which are sold as OEM which will not hold up and can in fact damage your system. Make sure you are using a properly wired outlet. I have seen outlets which have the common wire swapped with the hot wire kill the charger.
If you can still get it running let’s get a view on things using this gem of an App! [https://www.coconut-flavour.com/coconutbattery/|CoconutBattery] post a snapshot of the apps main window here for us to see.