Php - Your PHP installation appears to be missing the MySQL extension which is required by WordPress

Question

How do I fix the error below?

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

I

Answer 1

If you have Wordfence plugin installed I found commenting out the suPHP_ConfigPath lines in the .htaccess file brought the website back to life:

# Wordfence WAF
#
#   suPHP_ConfigPath '/home/a1614947/public_html'
#

I've reported this to Wordfence too.