Okay, now it works, but on the site I get a new error message: Warning: imagepng(https://8theme.b-cdn.net/www/htdocs/w0125f77/mkb-consulting.de/wp-content/themes/royal/framework/inc/really-simple-captcha/tmp/551832475.png): failed to open stream: Permission denied in /www/htdocs/w0125f77/mkb-consulting.de/wp-content/themes/royal/framework/inc/really-simple-captcha/really-simple-captcha.php on line 143
