Your image is not square, it is tilted so the top left and lower right corners show the white background instead of the cover image.
If you are new to this site, make sure you read all the forum threads on posting to the site.
Remember not all sites are the same.
We have not nor did we change any site rules during the downtime, so make sure the uploads are following all site rules.
If you do not read or follow site rules then they get deleted,
Rule 1. The Title is typed as follows The Purge - Election Day, not...
There are a few who just don't understand the words - Read all the site rules before posting, especially - how to post images to the site first...
Blu-ray covers are not 3120 X 1740
Poor Quality on covers for Seasons 1 & 2.