Wordpress Dashboard Unavailable on multisite - Urgent Fix

I'm currently facing an issue where I can't access my Wordpress dashboard, even though my website is live. I didn't make any recent changes to the site or update any plugins or themes. I need this problem resolved urgently.

Error message :

"Your PHP installation appears to be missing the MySQL extension which is required by WordPress.

Please check that the mysqli PHP extension is installed and enabled.

If you are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress support forums."


Ideal Skills:
- Proficient in Wordpress
- Experienced in debugging Wordpress issues
- Can work efficiently on urgent tasks
- MySQL, PHP

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