Hello,
Sorry for this inconvenience.
WPDM Elementor latest version with Elementor and Elementor Pro is working fine from our test environment . But in your website that is not working.
However, It could be caused because of a conflict with another plugin, can you please enable/disable other plugins for checking, you may also switch the theme to another for checking, please let me know then. You can also test it in a clean wordpress environment.
I am looking forward to hearing back from you soon.
With Regards