Hello Dae! My name is Abdullah, and I will assist you today.
I am sorry to know that you are experiencing this issue. When was the last time it worked fine for you? In the meantime, you can try the below things:
- Change your internet connection (You can use your mobile phone's hotspot temporarily) and see if that helps.
- You can reset the OneDrive and this should help you in your case:
https://support.microsoft.com/en-us/office/rese...
Thank you.
Best,
Abdullah