a clear and concie server setting and requirements, i.e. what is the Boonex server php.ini settings? copy n paste it so we can see.
mbstring have a lot of settings that affect orca and groups and also other things, it is the cause of some of the missing text after someone uses a letter with a hyphen over it, the rest of the post is missing on the standard install and settings for mbstrings, this is why we all need to sing from the same hymbook.

type of server. Dolphin installer will not accept see more an install on SuPHP servers unless you change all the file and folder permissions, as SuPHP servers dont need to be set to 777 or 666 to write, there should be a skip button on the permissions page of the installer.

the auto installer installs just fine on SuPHP servers but sets sets permission to 666 and 777, this is clearly not needed on SuPHP servers.