Call to undefined function: imagettftext()¶
ExpressionEngine returns the following error: “Call to undefined function: imagettftext().”
This error—and similar warnings such as “Warning: imagettftext(): Could not find/open font in …”—indicate that ExpressionEngine is running on a server where PHP is missing TrueType font support. Resolving this problem requires contacting the host support or server admin and have them upgrade to a PHP version that has such support compiled in.
If that is not an option, Use TrueType Font for Captcha? should be set to No underor CAPTCHAs should be disabled altogether.