Error when uploading photos on the site?

Question

PHP

Good day, tell me what is the reason? When loading an avatar on the site, such an error flies out, and moreover, from the mobile version it loads without an error, but from the full version it gives such an error?

I tested it in Denver, there are no errors at all, neither in the full nor in the mobile version, only on hosting.

I wrote to the hosting they said it does not depend on them.

Answer 1

Please provide a link to the site.