diff --git a/app/services/referral_service.py b/app/services/referral_service.py
index 1b22f4f3..a68ed10d 100644
--- a/app/services/referral_service.py
+++ b/app/services/referral_service.py
@@ -20,7 +20,7 @@ async def process_referral_registration(
         referrer = await get_user_by_id(db, referrer_id)
         
         if not new_user or not referrer:
-            logger.error(f"Пользователи не найдены: {new_user_id}, {referrer_id}")
+            logger.error(f"Пользователи не найдены: new_user_id={new_user_id}, referrer_id={referrer_id}")
             return False
         
         if new_user.referred_by_id != referrer_id:
@@ -81,9 +81,13 @@ async def process_referral_purchase(
         
         logger.info(f"🔍 Покупка реферала {user_id}: первая = {is_first_purchase}, сумма = {purchase_amount_kopeks/100}₽")
         
-        if is_first_purchase:
+        if is_first_purchase and settings.REFERRAL_REGISTRATION_REWARD > 0:
             reward_amount = settings.REFERRAL_REGISTRATION_REWARD
             
+            if reward_amount > 1000000: 
+                logger.error(f"❌ КРИТИЧЕСКАЯ ОШИБКА: reward_amount = {reward_amount} слишком большой! Проверьте настройки REFERRAL_REGISTRATION_REWARD")
+                reward_amount = 10000 
+            
             await add_user_balance(
                 db, referrer, reward_amount,
                 f"Реферальная награда за первую покупку {user.full_name}"
@@ -100,12 +104,18 @@ async def process_referral_purchase(
             
             logger.info(f"🎉 Первая покупка реферала: {referrer.telegram_id} получил {reward_amount/100}₽")
         
-        commission_amount = int(purchase_amount_kopeks * settings.REFERRAL_COMMISSION_PERCENT / 100)
+        if not (0 <= settings.REFERRAL_COMMISSION_PERCENT <= 100):
+            logger.error(f"❌ КРИТИЧЕСКАЯ ОШИБКА: REFERRAL_COMMISSION_PERCENT = {settings.REFERRAL_COMMISSION_PERCENT} некорректный! Должен быть от 0 до 100")
+            commission_percent = 10 
+        else:
+            commission_percent = settings.REFERRAL_COMMISSION_PERCENT
+            
+        commission_amount = int(purchase_amount_kopeks * commission_percent / 100)
         
         if commission_amount > 0:
             await add_user_balance(
                 db, referrer, commission_amount,
-                f"Комиссия {settings.REFERRAL_COMMISSION_PERCENT}% с покупки {user.full_name}"
+                f"Комиссия {commission_percent}% с покупки {user.full_name}"
             )
             
             await create_referral_earning(
@@ -128,6 +138,8 @@ async def process_referral_purchase(
         
     except Exception as e:
         logger.error(f"Ошибка обработки покупки реферала: {e}")
+        import traceback
+        logger.error(f"Полный traceback: {traceback.format_exc()}")
         return False
 
 
@@ -141,7 +153,7 @@ async def get_referral_stats_for_user(db: AsyncSession, user_id: int) -> dict:
         invited_count_result = await db.execute(
             select(func.count(User.id)).where(User.referred_by_id == user_id)
         )
-        invited_count = invited_count_result.scalar()
+        invited_count = invited_count_result.scalar() or 0
         
         paid_referrals_result = await db.execute(
             select(func.count(User.id)).where(
@@ -149,13 +161,13 @@ async def get_referral_stats_for_user(db: AsyncSession, user_id: int) -> dict:
                 User.has_had_paid_subscription == True
             )
         )
-        paid_referrals_count = paid_referrals_result.scalar()
+        paid_referrals_count = paid_referrals_result.scalar() or 0
         
-        total_earned = await get_referral_earnings_sum(db, user_id)
+        total_earned = await get_referral_earnings_sum(db, user_id) or 0
         
         from datetime import datetime, timedelta
         month_ago = datetime.utcnow() - timedelta(days=30)
-        month_earned = await get_referral_earnings_sum(db, user_id, start_date=month_ago)
+        month_earned = await get_referral_earnings_sum(db, user_id, start_date=month_ago) or 0
         
         return {
             "invited_count": invited_count,
@@ -171,4 +183,4 @@ async def get_referral_stats_for_user(db: AsyncSession, user_id: int) -> dict:
             "paid_referrals_count": 0,
             "total_earned_kopeks": 0,
             "month_earned_kopeks": 0
-        }
\ No newline at end of file
+        }