While, eForm works well with most of the caching plugins, but sometimes, things like file-uploader breaks when the pages are cached aggressively. eForm by default minifies the HTML output, so in some cases, due to double compression some functionality may break.
So solve this, you need to add the following RegularExpression Exception under Page Caching and CSS/JS minification.
This should take care of standalone form pages and plugin files. If you have changed the base endpoint of standalone, then you need to change
Additionally add the URL of the posts/pages where forms are published through shortcodes.