Call to a member function map() on null

Does the User model use the HasRoles trait; assuming you are using Spatie's Laravel Permission package

do you have a customer role?

@devhoussam123 where is the map function called, in assignRole I guessed? So, why then is $this->roles evaluating as null?

If you have not implemented roles (as a relation, accessor or property) yourself, then it should be an empty Collection (not null).

User.php

<?php

namespace App\Models;

use App\Enums\AccountStatus;
use App\Enums\UserRoles;
use Filament\Models\Contracts\FilamentUser;
use Filament\Models\Contracts\HasAvatar;
use Filament\Panel;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Illuminate\Support\Facades\Storage;
use Laravel\Sanctum\HasApiTokens;
use Spatie\Permission\Traits\HasRoles;

class User extends Authenticatable implements FilamentUser, HasAvatar, MustVerifyEmail
{
    use HasApiTokens;
    use HasFactory;
    use HasRoles;
    use Notifiable;
    use SoftDeletes;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'avatar_url',
        'name',
        'email',
        'password',
        'status',
        'roles',
    ];

    /**
     * The attributes that should be hidden for serialization.
     *
     * @var array<int, string>
     */
    protected $hidden = [
        'password',
        'remember_token',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'email_verified_at' => 'datetime',
        'password' => 'hashed',
        'status' => AccountStatus::class,
        'roles' => UserRoles::class,
    ];

    /**
     * The "booted" method of the model.
     */
    protected static function booted(): void
    {
        static::created(function (User $user) {
            if (filament()->getCurrentPanel()->getId() === 'customer') {
                $user->assignRole('customer');
            }

            if (filament()->getCurrentPanel()->getId() === 'admin') {
                $user->assignRole(['admin', 'super_admin']);
            }
        });
    }

    public function canAccessPanel(Panel $panel): bool
    {
        if ($panel->getId() === 'customer' && $this->hasRole('customer')) {
            return true;
        }

        if ($panel->getId() === 'admin' && $this->hasRole(['admin', 'super_admin'])) {
            return true;
        }

        return false;
    }

    public function getFilamentAvatarUrl(): ?string
    {
        return $this->avatar_url ? Storage::url($this->avatar_url) : null;
    }
}

can you post the full error with stacktrace, or share the error using the share button on the error?

Notice: When I remove the $table->string('roles')->default(UserRoles::Default); from users table it works

The documentation is clear about this.

https://spatie.be/docs/laravel-permission/v6/prerequisites

Must not have a [role] or [roles] property, nor a [roles()] method

Your User model/object MUST NOT have a role or roles property (or field in the database by that name), nor a roles() method on it. Those will interfere with the properties and methods added by the HasRoles trait provided by this package, thus causing unexpected outcomes when this package's methods are used to inspect roles and permissions.

Must not have a [permission] or [permissions] property, nor a [permissions()] method

Your User model/object MUST NOT have a permission or permissions property (or field in the database by that name), nor a permissions() method on it. Those will interfere with the properties and methods added by the HasPermissions trait provided by this package (which is invoked via the HasRoles trait).

// -----

just rename your column like

$table->string('current_role')->default(UserRoles::Default);

after I update the migration table now I get '403 FORBIDDEN' when I try to get access to filament dashboard

User.php

    public function canAccessPanel(Panel $panel): bool
    {
        if ($panel->getId() === 'customer' && $this->hasRole([UserRoles::Customer]) && $this->hasVerifiedEmail()) {
            return true;
        }

        if ($panel->getId() === 'admin' && $this->hasRole([UserRoles::Admin, UserRoles::SuperAdmin]) && $this->hasVerifiedEmail()) {
            return true;
        }

        return false;
    }

Now i WANT to be able to update the current role id from users table