Sometimes Installatron will return a PHP error stating that it is unable to install your script. These are some of the potential causes and their respective solutions.
You likely have a .htaccess in your public_html folder (or possibly even above that) which is redirecting all requests for files and directories into another application already installed. Additionally, it could be because you have a PHP flag in your .htaccess that could be incompatible with our system configuration. Temporarily rename that .htaccess to .htaccess1 and try again. This will instantly tell you if it’s something in your .htaccess causing the issue.
The permissions on your files and folders could be set too low for a website. If you would like to reset your permissions, you can use the VIPcontrol permissions fixer.