diff --git a/src/modules/admin/admin.module.ts b/src/modules/admin/admin.module.ts
index ce0b205..74f3c00 100644
--- a/src/modules/admin/admin.module.ts
+++ b/src/modules/admin/admin.module.ts
@@ -9,6 +9,7 @@ import { Permission } from '../roles/entities/permission.entity';
 import { RolePermission } from '../roles/entities/rolePermission.entity';
 import { AdminController } from './controllers/admin.controller';
 import { UtilsModule } from '../utils/utils.module';
+import { RestaurantsModule } from '../restaurants/restaurants.module';
 
 @Module({
   providers: [AdminService, AdminRepository],
@@ -17,6 +18,7 @@ import { UtilsModule } from '../utils/utils.module';
     MikroOrmModule.forFeature([Admin, Role, Permission, RolePermission]),
     JwtModule,
     UtilsModule,
+    RestaurantsModule,
   ],
   exports: [AdminService, AdminRepository],
 })
diff --git a/src/modules/admin/repositories/admin.repository.ts b/src/modules/admin/repositories/admin.repository.ts
index bc7b282..5c4d18d 100644
--- a/src/modules/admin/repositories/admin.repository.ts
+++ b/src/modules/admin/repositories/admin.repository.ts
@@ -1,18 +1,35 @@
 import { EntityManager, EntityRepository } from '@mikro-orm/postgresql';
 import { Admin } from '../entities/admin.entity';
+import { AdminRole } from '../entities/adminRole.entity';
+import { RestRepository } from '../../restaurants/repositories/rest.repository';
 import { Injectable } from '@nestjs/common';
 
 @Injectable()
 export class AdminRepository extends EntityRepository<Admin> {
-  constructor(readonly em: EntityManager) {
+  constructor(
+    readonly em: EntityManager,
+    private readonly restRepository: RestRepository,
+  ) {
     super(em, Admin);
   }
 
   async findByPhoneAndRestaurantSlug(phone: string, slug: string): Promise<Admin | null> {
-    return this.em.findOne(
-      Admin,
-      { phone, roles: { role: { restaurant: { slug } } } },
-      { populate: ['roles', 'roles.role'] },
-    );
+    // First, find the restaurant by slug using the same repository as auth service
+    const restaurant = await this.restRepository.findOne({ slug });
+    if (!restaurant) {
+      return null;
+    }
+
+    // Find AdminRole that matches the admin phone and restaurant
+    const adminRole = await this.em.findOne(AdminRole, {
+      admin: { phone },
+      restaurant: { id: restaurant.id },
+    });
+
+    if (!adminRole || !adminRole.admin) {
+      return null;
+    }
+
+    return adminRole.admin;
   }
 }
diff --git a/src/modules/auth/services/auth.service.ts b/src/modules/auth/services/auth.service.ts
index 31b5704..10d7f3e 100644
--- a/src/modules/auth/services/auth.service.ts
+++ b/src/modules/auth/services/auth.service.ts
@@ -40,7 +40,7 @@ export class AuthService {
 
     const admin = await this.adminRepository.findByPhoneAndRestaurantSlug(phone, slug);
     if (!admin) {
-      throw new NotFoundException();
+      throw new NotFoundException(AuthMessage.ADMIN_NOT_FOUND);
     }
 
     const code = this.generateOtpCode();
diff --git a/src/seeders/DatabaseSeeder.ts b/src/seeders/DatabaseSeeder.ts
index c589a57..5878f92 100644
--- a/src/seeders/DatabaseSeeder.ts
+++ b/src/seeders/DatabaseSeeder.ts
@@ -440,7 +440,7 @@ export class DatabaseSeeder extends Seeder {
       const admin = em.create(Admin, {
         phone: '09185290775',
         firstName: 'حمید',
-        lastName: 'زرگامی',
+        lastName: 'ضرقامی',
       });
       em.persist(admin);