Issue uploading evidence for a contribution

I have similar issues being rejected. When I attempt to upload proof, I receive a Gateway Error. The file is a pdf of 103K. This is beyond frustrating when I'm only trying to update grossly missing info on a title. 502 Bad Gateway ERROR The request could not be satisfied. We can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner. If you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation. Generated by cloudfront (CloudFront) HTTP3 Server Request ID: 62b0xkCNSRIFR3zyzYVq19I-byiHlO1jXaiI5eupV_iHRlUMiFPgOg== This is for https://contribute.imdb.com/title/tt0601249/?ref_=ra_gb_ln?ref_=ra_dc_ln Why is it so hard to add details?