new installation error

[Hassan829]

During inheritance of ArrayAccess: Uncaught ErrorException: Return type of Illuminate\Support\Collection::offsetExists($key) should either be compatible with Ar ▶
Stack trace:
#0 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Support/Collection.php(11): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError() ▶
#1 /var/www/html/E-Chama-web/vendor/composer/ClassLoader.php(571): include('...')
#2 /var/www/html/E-Chama-web/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile()
#3 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Support/helpers.php(110): Composer\Autoload\ClassLoader->loadClass()
#4 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Foundation/PackageManifest.php(89): collect()
#5 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Foundation/PackageManifest.php(78): Illuminate\Foundation\PackageManifest->config()
#6 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Foundation/Bootstrap/RegisterFacades.php(26): Illuminate\Foundation\PackageManifest->aliase ▶
#7 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(230): Illuminate\Foundation\Bootstrap\RegisterFacades->bootstrap ▶
#8 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(151): Illuminate\Foundation\Application->bootstrapWith()
#9 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(135): Illuminate\Foundation\Http\Kernel->bootstrap()
#10 /var/www/html/E-Chama-web/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(109): Illuminate\Foundation\Http\Kernel->sendRequestThroughRout ▶
#11 /var/www/html/E-Chama-web/public/index.php(55): Illuminate\Foundation\Http\Kernel->handle()
#12 {main}