Hi Edze,
Thank you for reaching out, and I’m sorry for the inconvenience you’re experiencing.
Since the issue persists even after restoring a backup and is affecting both the frontend and the /administrator area, it is likely related to a server-level configuration, extension conflict, or an incomplete update process.
To investigate this further and provide an accurate resolution, could you please share your server access details (cPanel/hosting panel)? This will allow us to review the error logs, verify the Joomla setup, and identify the root cause more efficiently.
We appreciate your patience and understanding, and we’ll do our best to resolve this as quickly as possible.
Kind regards