My youtube is hanging up and not clearing buffer

Nice to meet you, *****!
First of all, may you check the speed of your internet connection?

I just need to be sure

You may try to reinstall it

Got it, no, we're not able to access your TV, should we?

We'll do some simple troubleshooting in order to understand the problem, so we don't even need to have access to your TV

What do you mean?

We just check the possible problems
Until we're sure what's the source of the problem

Yeah, got it
Could you check if you have enough memory on your TV?

Could you tell me what TV do you have?

Thank you!
So to find out how much memory is in your LG TV, do the following:

1. Take the remote control and press the button with a gear symbol button. You will get the TV menu;
2. Select All Settings. Is a circle with three dots in the TV menu
3. Then select (General), and the General menu will open, go to this menu and select Devices (information about available devices).
4. Now select TV Management, another menu opens, and like TV info.
5. You see available internal memory;

Could you send me the photo please?

To attach pictures to our chat, you need to press the paper clip button in the lower right corner of the chat window. Then you have either to choose an image on your device or take a photo right away. Then confirm sending.

Yeah, thank you!
Select "About this TV"

You may also check for updates as you've already found that button

On your photo there's a red button "Check for updates"

I see
Let's try to clear the Cache

Firstly, you need to find applications in the settings

Hold the OK button briefly. This way, you open the Edit Mode.
There you should see all apps

Yes

Please tap on Youtube

Can you see "Show system" in the upper right corner?

Please send me a picture of the screen

Please tap on the settings

Clear watch history and clear search history

Have you started the process of clearing history and search history?

Please reboot the TV and try again.

Sure, *****.
The problem was that any device has a limited amount of memory and limited processing abilities. So, the procedure, that you have done before, should be repeated from time to time.
Is there anything else I can do for you today?