问题描述（报错内容）：
安装了一个扩展之后，先报的Fatal error: Declaration of ExerciseBook\FofUploadImageX\Templates\ImageXPreviewTemplate::template(): string must be compatible with FoF\Upload\Contracts\TextFormatterTemplate::template(): Illuminate\Contracts\View\View in /home/bbsfrpcx/domains/black.1919810.com/public_html/vendor/exercisebook/fof-upload-imagex/src/Templates/ImageXPreviewTemplate.php on line 36，强制卸载后提示
Warning: Undefined array key "data" in /home/bbsfrpcx/domains/black.1919810.com/public_html/vendor/flarum/core/src/Frontend/Content/CorePayload.php on line 57
Fatal error: Uncaught Laminas\HttpHandlerRunner\Exception\EmitterException: Output has been emitted previously; cannot emit response in /home/bbsfrpcx/domains/black.1919810.com/public_html/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:20 Stack trace: #0 /home/bbsfrpcx/domains/black.1919810.com/public_html/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitterTrait.php(42): Laminas\HttpHandlerRunner\Exception\EmitterException::forOutputSent() #1 /home/bbsfrpcx/domains/black.1919810.com/public_html/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(21): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->assertNoPreviousOutput() #2 /home/bbsfrpcx/domains/black.1919810.com/public_html/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(75): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->emit() #3 /home/bbsfrpcx/domains/black.1919810.com/public_html/vendor/flarum/core/src/Http/Server.php(45): Laminas\HttpHandlerRunner\RequestHandlerRunner->run() #4 /home/bbsfrpcx/domains/black.1919810.com/public_html/index.php(26): Flarum\Http\Server->listen() #5 {main} thrown in /home/bbsfrpcx/domains/black.1919810.com/public_html/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php on line 20
大佬可以给我发一个相同文件的吗，远程指导也行。