I am trying to do a backup of a non multisite wp. At first

I am trying to do a backup of a non multisite wp.
At first snapshot worked well, but now it gets stuck in this step:
Files: : media/wp-clone/wpclone_backup
Days ago I uninstalled a plugin called wp clone from another developper (wp academy).
Is this issue related?
what can I do to make snapshot working?
my site is running locally.
thanks