I’m posting this comment to help those who may encounter the same issues I did using WPDM (free or pro) on an OVH mutualized hosting and WP-Rocket as a caching plugin. If it can save someone from wasting hours like I did…
Problem description: when clicking on the “download” button in WPDM documents page, the file download starts but stops and ends in failure.
Cause: the Gzip rules added by WP-Rocket to the htaccess file are incompatible with those of OVH. In some cases, this doesn’t cause any visible problems, but if you install WPDM, downloads don’t work.
Resolution: install the “WP Rocket | Remove GZIP (mod_deflate) rules” plugin proposed by WP-Rocket on this URL : https://docs.wp-rocket.me/article/1790-erreur-blank-response-from-server-ovh-locotranslate page.
They offer this solution for Locotranslate, but it also covers the WP-ROCKET/OVH problem.
Hope that helps !
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