MediaWiki:Config-sqlite-parent-unwritable-group

Cannot create the data directory $1, because the parent directory $2 is not writable by the webserver.

The installer has determined the user your webserver is running as. Make the $3 directory writable by it to continue. On a Unix/Linux system do:

cd $2
mkdir $3
chgrp $4 $3
chmod g+w $3