admin:import redis-manager error

[LindolfoJunior]

Hi!
I'm trying to upload the redis-manager, however, when I run the command it shows the error below. Where am I going wrong?

command: php artisan admin:import redis-manager

Error:

Symfony\Component\Debug\Exception\FatalThrowableError : Class name must be a valid object or a string

at /var/www/pecarara_dev/vendor/encore/laravel-admin/src/Extension.php:362
358| protected static function createMenu($title, $uri, $icon = 'fa-bars', $parentId = 0, array $children = [])
359| {
360| $menuModel = config('admin.database.menu_model');
361|

362| $lastOrder = $menuModel::max('order');
363| /**
364| * @var Model
365| */
366| $menu = $menuModel::create([

Exception trace:

1 Encore\Admin\Extension::createMenu("Redis manager", "redis", "fa-database")
/var/www/pecarara_dev/vendor/laravel-admin-ext/redis-manager/src/BootExtension.php:44

2 Encore\Admin\RedisManager\RedisManager::import(Object(Encore\Admin\Console\ImportCommand))
/var/www/pecarara_dev/vendor/encore/laravel-admin/src/Console/ImportCommand.php:46

Please use the argument -v to see more details.