I'm currently trying to submit an image for the series "Three Hundred Years of Longing: Bu Jian Shang Xian San Bai Nian (Novel)" by Mu Su Li, but no matter how much I try, it doesn't work. I don't know where the problem is. However, I noticed that I couldn't see the images of all series the day before yesterday and yesterday morning: I was able to see them as normal only yesterday afternoon.

Have you tried to add the image within the last 12 hours? If it's still not working, then make sure the image you're uploading is not huge

A just ruler amongst tyrants

I tried to add another image and it worked: the previous image must have been a too huge file to submit.