Fatal error: Uncaught Error: Class 'think\Service' not found in D:\php\WWW\xhqmzzwatdqc.cccf.net\vendor\topthink\think-captcha\src\CaptchaService.php:9 Stack trace: #0 {main} thrown in D:\php\WWW\xhqmzzwatdqc.cccf.net\vendor\topthink\think-captcha\src\CaptchaService.php on line 9