注册新用户的时候一直显示网络不太顺，请再试一次。点击Debug之后得到了下列的错误信息：
Illuminate\Contracts\Validation\ValidationException: in file /var/www/47.95.225.23/vendor/flarum/core/src/Core/Validator/AbstractValidator.php on line 64
Stack trace:
1. Illuminate\Contracts\Validation\ValidationException->() /var/www/47.95.225.23/vendor/flarum/core/src/Core/Validator/AbstractValidator.php:64
2. Flarum\Core\Validator\AbstractValidator->assertValid() /var/www/47.95.225.23/vendor/flarum/core/src/Core/Command/RegisterUserHandler.php:137
3. Flarum\Core\Command\RegisterUserHandler->handle() /var/www/47.95.225.23/vendor/illuminate/bus/Dispatcher.php:202
4. call_user_func() /var/www/47.95.225.23/vendor/illuminate/bus/Dispatcher.php:202
5. Illuminate\Bus\Dispatcher->Illuminate\Bus{closure}() /var/www/47.95.225.23/vendor/illuminate/pipeline/Pipeline.php:139
6. call_user_func() /var/www/47.95.225.23/vendor/illuminate/pipeline/Pipeline.php:139
7. Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}() /var/www/47.95.225.23/vendor/illuminate/pipeline/Pipeline.php:102
8. call_user_func() /var/www/47.95.225.23/vendor/illuminate/pipeline/Pipeline.php:102
9. Illuminate\Pipeline\Pipeline->then() /var/www/47.95.225.23/vendor/illuminate/bus/Dispatcher.php:204
10. Illuminate\Bus\Dispatcher->dispatchNow() /var/www/47.95.225.23/vendor/illuminate/bus/Dispatcher.php:177
11. Illuminate\Bus\Dispatcher->dispatch() /var/www/47.95.225.23/vendor/flarum/core/src/Api/Controller/CreateUserController.php:45
12. Flarum\Api\Controller\CreateUserController->data() /var/www/47.95.225.23/vendor/flarum/core/src/Api/Controller/AbstractSerializeController.php:97
13. Flarum\Api\Controller\AbstractSerializeController->handle() /var/www/47.95.225.23/vendor/flarum/core/src/Api/Controller/AbstractCreateController.php:23
14. Flarum\Api\Controller\AbstractCreateController->handle() /var/www/47.95.225.23/vendor/flarum/core/src/Api/Client.php:69
15. Flarum\Api\Client->send() /var/www/47.95.225.23/vendor/flarum/core/src/Forum/Controller/RegisterController.php:60
16. Flarum\Forum\Controller\RegisterController->handle() /var/www/47.95.225.23/vendor/flarum/core/src/Http/Handler/ControllerRouteHandler.php:53
17. Flarum\Http\Handler\ControllerRouteHandler->invoke() /var/www/47.95.225.23/vendor/flarum/core/src/Http/Middleware/DispatchRoute.php:69
18. Flarum\Http\Middleware\DispatchRoute->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:212
19. Zend\Stratigility\Dispatch->dispatchCallableMiddleware() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:88
20. Zend\Stratigility\Dispatch->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Next.php:160
21. Zend\Stratigility\Next->invoke() /var/www/47.95.225.23/vendor/flarum/core/src/Http/Middleware/SetLocale.php:51
22. Flarum\Http\Middleware\SetLocale->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:212
23. Zend\Stratigility\Dispatch->dispatchCallableMiddleware() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:88
24. Zend\Stratigility\Dispatch->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Next.php:160
25. Zend\Stratigility\Next->invoke() /var/www/47.95.225.23/vendor/flarum/core/src/Http/Middleware/AuthenticateWithSession.php:36
26. Flarum\Http\Middleware\AuthenticateWithSession->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:212
27. Zend\Stratigility\Dispatch->dispatchCallableMiddleware() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:88
28. Zend\Stratigility\Dispatch->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Next.php:160
29. Zend\Stratigility\Next->invoke() /var/www/47.95.225.23/vendor/flarum/core/src/Http/Middleware/RememberFromCookie.php:39
30. Flarum\Http\Middleware\RememberFromCookie->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:212
31. Zend\Stratigility\Dispatch->dispatchCallableMiddleware() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:88
32. Zend\Stratigility\Dispatch->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Next.php:160
33. Zend\Stratigility\Next->invoke() /var/www/47.95.225.23/vendor/flarum/core/src/Http/Middleware/StartSession.php:48
34. Flarum\Http\Middleware\StartSession->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:212
35. Zend\Stratigility\Dispatch->dispatchCallableMiddleware() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:88
36. Zend\Stratigility\Dispatch->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Next.php:160
37. Zend\Stratigility\Next->invoke() /var/www/47.95.225.23/vendor/flarum/core/src/Http/Middleware/ParseJsonBody.php:31
38. Flarum\Http\Middleware\ParseJsonBody->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:212
39. Zend\Stratigility\Dispatch->dispatchCallableMiddleware() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:88
40. Zend\Stratigility\Dispatch->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Next.php:160
41. Zend\Stratigility\Next->invoke() /var/www/47.95.225.23/vendor/flarum/core/src/Http/Middleware/HandleErrors.php:61
42. Flarum\Http\Middleware\HandleErrors->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:212
43. Zend\Stratigility\Dispatch->dispatchCallableMiddleware() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Dispatch.php:88
44. Zend\Stratigility\Dispatch->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/Next.php:160
45. Zend\Stratigility\Next->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-stratigility/src/MiddlewarePipe.php:111
46. Zend\Stratigility\MiddlewarePipe->invoke() /var/www/47.95.225.23/vendor/flarum/core/src/Http/AbstractServer.php:55
47. Flarum\Http\AbstractServer->invoke() /var/www/47.95.225.23/vendor/zendframework/zend-diactoros/src/Server.php:166
48. Zend\Diactoros\Server->listen() /var/www/47.95.225.23/vendor/flarum/core/src/Http/AbstractServer.php:36
49. Flarum\Http\AbstractServer->listen() /var/www/47.95.225.23/index.php:16
请问如何解决这个问题，谢谢