Illuminate\ Datebase\ Eloquent version 5.4 was introduced into the project as a third-party class library, using updateOrcreate to report errors

premise: create a table manually without using the artisan command

Fatal error: Uncaught Illuminate\Database\Eloquent\MassAssignmentException: level in D:\phpStudy\WWW\repett\simple-mvc-master\simple-mvc-master\vendor\illuminate\database\Eloquent\Model.php:236 Stack trace: -sharp0 D:\phpStudy\WWW\repett\simple-mvc-master\simple-mvc-master\vendor\illuminate\database\Eloquent\Builder.php(377): Illuminate\Database\Eloquent\Model->fill(Array) -sharp1 D:\phpStudy\WWW\repett\simple-mvc-master\simple-mvc-master\vendor\illuminate\support\helpers.php(964): Illuminate\Database\Eloquent\Builder->Illuminate\Database\Eloquent\{closure}(Object(LcchnProposal)) -sharp2 D:\phpStudy\WWW\repett\simple-mvc-master\simple-mvc-master\vendor\illuminate\database\Eloquent\Builder.php(378): tap(Object(LcchnProposal), Object(Closure)) -sharp3 D:\phpStudy\WWW\repett\simple-mvc-master\simple-mvc-master\vendor\illuminate\database\Eloquent\Model.php(1374): Illuminate\Database\Eloquent\Builder->updateOrCreate(Array, Array) -sharp4 D:\phpStudy\WWW\repett\simple-mvc-master\simple-mvc-master\vendor\illuminate\database\Eloquent\Model.php(1386): Ill in D:\phpStudy\WWW\repett\simple-mvc-master\simple-mvc-master\vendor\illuminate\database\Eloquent\Model.php on line 236-sharp-sharp-sharp