After a fresh install, the site will display "service unavailable" error, checked the source codes, it display as below:
PHP Fatal Error
Message
Uncaught Error: Call to undefined function Gregwar\Captcha\mb_strlen() in /var/www/html/app/addons/recaptcha/lib/Gregwar/Captcha/CaptchaBuilder.php:316 Stack trace: #0 /var/www/html/app/addons/recaptcha/lib/Gregwar/Captcha/CaptchaBuilder.php(437): Gregwar\Captcha\CaptchaBuilder->writePhrase(Resource id #112, 'jaxtz4', '/var/www/html/a...', 150, 40) #1 /var/www/html/app/addons/recaptcha/Tygh/Addons/Recaptcha/NativeCaptchaDriver.php(86): Gregwar\Captcha\CaptchaBuilder->build(150, 40) #2 /var/www/html/app/addons/recaptcha/Tygh/Addons/Recaptcha/NativeCaptchaDriver.php(67): Tygh\Addons\Recaptcha\NativeCaptchaDriver->initCaptchaBuilder() #3 /var/www/html/app/addons/recaptcha/func.php(41): Tygh\Addons\Recaptcha\NativeCaptchaDriver->__construct(Object(Tygh\Web\Session)) #4 /var/www/html/app/addons/recaptcha/init.php(23): fn_recaptcha_get_captcha_driver() #5 /var/www/html/app/lib/vendor/pimple/pimple/src/Pimple/Container.php(259): Tygh\Addons\AXmlScheme->{closure}(Object(Tygh\Web\Antibot), Object(Tygh\Application)) #6
Error at
app/addons/recaptcha/lib/Gregwar/Captcha/CaptchaBuilder.php, line: 316
Anyone know how to fix except to disable the Recaptcha addon ?
Thanks !