When cPanel is viewed using the Paper lantern theme, there was an error in which we were not able to delete any files over the file manager.
When loading over the Chrome, got the following in console :
utilities_container.js:13 Uncaught TypeError: Cannot set property ‘className’ of nullshow_panel @
As a workaround for this, tried re-installing the cPanel Paper lantern theme.
Removing Paper Lantern can be done by deleting its config folder or putting it in a separate folder.
# mv /usr/local/cpanel/base/frontend/paper_lantern /root/jo
To re-install the theme simply run a cPanel update :
/scripts/upcp --force
This should fix the issue ! Atleast it worked for me 😀