Last night around 8pm I was on instagram using my Proscan tablet model PLT7777G-Q. I froze so I held the power button to turn it off. I tried turning it on and it wouldn't. I tried powering it on after leaving it on the charger for an hour, nothing. I let it sit over night without charging and nothing. Then I plugged the charger in and it showed the charging logo for 1 second then screen just went black again. Nothing has happened from that point. Help please and thx.