Upload Stuck at 0.0%

Hello, i take a backup of the entire blog with your plugin, becouse of your beautiful advertise “migrate easy with one click”
My WP blog is 19GB and the .wpress file generated is 20GB, sems ok.
Now i’ve transfer the domain to another hoster (Aruba.it), before i was with WordPress.com hosting.

So, I’ve run the fresh new wordpress dashboard inside my new host, same php version etc. all exactly the same, but fresh new.
Then,m I’ve Installed your plugin for uploading and restoring the backup file.
Of course, i edit the max-upload-size data in wop-config like this:

@ini_set( ‘upload_max_filesize’ , ’21G’ );
@ini_set( ‘post_max_size’, ’21G’);
@ini_set( ‘memory_limit’, ‘256M’ );
@ini_set( ‘max_execution_time’, ‘0’ );
@ini_set( ‘max_input_time’, ‘0’ );

but when i try tu upload the .wpress file, the screen remain stuck at 0.0% for hours…And my Windows process show 0 kbps in upload, so, the entire process sems to not START. In the storage/ folder there is no error log.

what’s up, please?
I have no more access to the old hoster.