Product import not working. ERROR

Good afternoon [file]20711[/file] [file]20712[/file] [file]20713[/file] https://box.agro-him.com.ua/ [file]20711[/file] [file]20712[/file] [file]20713[/file] We are trying to load the addon. fields to products, gives an error. [file]20711[/file] [file]20712[/file] [file]20713[/file] Can you suggest what could be the problem? [file]20711[/file] [file]20712[/file] [file]20713[/file] Just tested the import in this test box - everything works fine. [file]20711[/file] [file]20712[/file] [file]20713[/file] And in our main it gives an error (box.agro-him.com.ua) [file]20711[/file] [file]20712[/file] [file]20713[/file] Thank you! [file]20711[/file] [file]20712[/file] [file]20713[/file] [file]20711[/file] [file]20712[/file] [file]20713[/file] [file]20711[/file] [file]20712[/file] [file]20713[/file] [file]20711[/file] [file]20712[/file] [file]20713[/file]