Thread:Project:Support desk/Odd occurrence when viewing Special:Version/reply

This error happens, because $wgGitBin is set to /usr/bin/git and because this path is not within those paths, which are allowed by open_basedir. So either you allow access to this path by adding it to open_basedir or you change $wgGitBin to a path, to which the user does have access. Or finally you can make your installation no git checkout, meaning you could remove the folder .git, which then stops MediaWiki from trying to get information about the Git repo.