提问前请务必仔细阅读如何排查故障和常见问题。
问题描述：求助，装了pwa插件，然后安装了gmp拓展，每次发帖回帖都会出现错误，但实际上是发帖成功的
报错内容：
调试模式报错内容：<b>Warning</b>: [WebPush] gmp extension is not loaded but is required for sending push notifications with payload or for VAPID authentication. You can fix this in your php.ini. in <b>/www/wwwroot/gingastation.cn/vendor/minishlink/web-push/src/WebPush.php</b> on line <b>79</b><br />
<br />
<b>Fatal error</b>: Uncaught Laminas\HttpHandlerRunner\Exception\EmitterException: Output has been emitted previously; cannot emit response in /www/wwwroot/gingastation.cn/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:24
Stack trace:
#0 /www/wwwroot/gingastation.cn/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitterTrait.php(40): Laminas\HttpHandlerRunner\Exception\EmitterException::forOutputSent()
#1 /www/wwwroot/gingastation.cn/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(27): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->assertNoPreviousOutput()
#2 /www/wwwroot/gingastation.cn/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(98): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->emit()
#3 /www/wwwroot/gingastation.cn/vendor/flarum/core/src/Http/Server.php(44): Laminas\HttpHandlerRunner\RequestHandlerRunner->run()
#4 /www/wwwroot/gingastation.cn/public/index.php(26): Flarum\Http\Server->listen()
#5 {main}
thrown in <b>/www/wwwroot/gingastation.cn/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php</b> on line <b>24</b><br />
已尝试的解决办法：卸载了gmp，但是还是一样报错
网址：gingastation.cn