I was notified by Softaculous that they have fixed the permissions issue. If you have any problems using the Auto-Installer, please report it to your hosting provider who should refer the issues to Softaculous. Softaculous will react and fix the problem ASAP.
The auto-installer does work, and installs Dolphin as a fresh installation.
The auto-installer does work, and installs Dolphin as a fresh installation.