c240 Not Charging

I got a c240 for my birthday, Oct 9th.
I’ve only had to charge it once before this and it worked fine.
Two days ago, the battery went red, so I plugged it into my computer and the screen appeared normal, indicating that it was charging.
However, after I unplugged it and turned it back on this morning, the battery was still red.
I plugged it back in as soon as I saw that, and it’s still saying that it’s charging.
After 4 hours of being plugged into my computer, I unplugged it again, and turned it on - only to see that it hasn’t charged at all.
I have it plugged in again now, hoping for the best.

Any suggestions for what I should do to solve this?
Thanks in advance. <3

Try reseating the battery.