With over 09 years of experience in the field of IT, I am more than confident in my ability to help you resolve this Lua error issue on your MediaWiki platform. Having deployed and maintained various cloud computing platforms including AWS, Microsoft AZURE, and Google Cloud (GCP), I have gained substantial expertise in a range of server operating systems like Windows Server 2003-to-2012R2, Windows Server 2016 Amazon Linux, Debian, RHEL, CentOS, and especially Ubuntu.