I can’t upload images from hard drive to Lightroom

Hi,

I have adobe lightroom on my MacBook (Sonoma).

I've previously been able to upload RAW images from my hard drive to my Lightroom Web app fine in the past. Now when I try to upload, a few images start uploading. Visually, I can see the bar with the image file name in it, start filling up (representing the upload). Then after about 10-15mins, all the images say "unable to upload" in red text and the upload cancels itself.

I had over 5k photos on there which I've now deleted most (currently around 1.5k) and still it cancels on me so I don't think it's a storage issue. I just deleted the recycle bin and tried uploading again. It seems to be working now but not sure if it will actually go through.
I've tried to upload the entire folder again. Because I've done it a few times now, random files have uploaded here and there so when I try to reupload, I will now get sections where the text turns yellow and says "duplicate" and doesn't upload. This is great but wondering if there's a limit on duplicates attempting upload that might trigger the system to stop uploading altogether?

Thanks for any assistance

 
anybhelp would be great. Thanks