Hi,
The Softaculous Team has released Softaculous 5.0.4
1) [Bug Fix] : On cPanel servers with MultiPHP disabled the error “Installation cannot proceed because the following files already exist in the target folder” occurred even when there were no files that already exists. This bug was introduced in Softaculous 5.0.3 which was released on 9th June 2018. This is fixed now.
Regards,
The Softaculous Team