I would take your charger and put it in a sock and then put it in a bag of rice. Unless you got another charger cable then try that if that doesn't work then see if your charging port is potentially clogged in anyway use something very thin and non-metal to clean it out and try it again.
Here are some steps you can try: https://www.samsung.com/us/support/troubleshooting/TSG01001449/
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