Originally Posted by d3iti
A link to the website to help problem solve the problem.
You should check the file size of your images. What is the size of these image files?
(login to modx manager area: I use pages that have forms for downloading images to the site).
The size of image files up to 30 kilobytes. File names do not contain Russian letters: only numbers and letters in English.
I've added a screenshot, which displays the process of downloading images to a page of the site