Fatal error: Class 'WA_MySQLi_Auth' not found
I am attempting to place user logins for a site on a xampp server. And on the visitors login page I keep getting this message:
Fatal error: Class 'WA_MySQLi_Auth' not found in C:\xampp\htdocs\AmericanTechnicalCeramics\index.php on line 5
How do I correct this and also get the name of the person to show in the logged in page?