php artisan tinker laravel PHP Fatal error: Call to undefined method stdClass::save() admin user

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First I have created an admin user using tinker then I deleted my migration in laravel5.1 then I did migration but this is the error:

PHP Fatal error: Call to undefined method stdClass::save() in /var/www/myblog/vendor/psy/psysh/src/Psy/ExecutionLoop/Loop.php(76) : eval()'d code on line 1

[Symfony\Component\Debug\Exception\FatalErrorException]
Call to undefined method stdClass::save()

the link to the screen shot

via Chebli Mohamed