Don't charge at all

Dec 16, 2018
1
0
10
I got a galaxy tab E, used her one night was fine, put it on charge came back to it in the morning and it was on 26%, my charger makes like a buzzing noise when it's left on and not charging anything, and it did that when I put my tablet on charge, how can I stop it from blocking the charge??
Cheers,
Luke.