I'm trying to charge my samsung s7, the battery icon appears but it doesn't seem to be charging? Does anyone know the cause/solution?

I'm trying to charge my samsung s7, the battery icon appears but it doesn't seem to be charging? Does anyone know the cause/solution?

Read more: https://samsungus.org/qa/s7/i-m-trying-to-charge-my-samsung-s7-the-battery-icon.html