diff --git a/modules/alert_bot.py b/modules/alert_bot.py
index 5ba4d99a..c618dae0 100644
--- a/modules/alert_bot.py
+++ b/modules/alert_bot.py
@@ -85,6 +85,7 @@ def __init__(self, ton, local, *args, **kwargs):
         self.hostname = None
         self.token = self.ton.local.db.get("BotToken")
         self.chat_id = self.ton.local.db.get("ChatId")
+        self.last_db_check = None
 
     def send_message(self, text: str):
         if self.token is None:
@@ -189,6 +190,9 @@ def test_alert(self, args):
         self.send_message('Test alert')
 
     def check_db_usage(self):
+        if time.time() - self.last_db_check < 600:
+            return
+        self.last_db_check = time.time()
         usage = self.ton.GetDbUsage()
         if usage > 95:
             self.send_alert("db_usage_95")
@@ -206,12 +210,15 @@ def check_validator_wallet_balance(self):
     def check_efficiency(self):
         if not self.ton.using_validator():
             return
-        validator = self.validator_module.find_myself(self.ton.GetValidatorsList(fast=True))
-        if validator is None or validator.is_masterchain is False or validator.efficiency is None:
+        validator = self.validator_module.find_myself(self.ton.GetValidatorsList())
+        if validator is None or validator.efficiency is None:
             return
         config34 = self.ton.GetConfig34()
         if (time.time() - config34.startWorkTime) / (config34.endWorkTime - config34.startWorkTime) < 0.8:
             return  # less than 80% of round passed
+        if validator.is_masterchain is False:
+            if validator.efficiency != 0:
+                return
         if validator.efficiency < 90:
             self.send_alert("low_efficiency", efficiency=validator.efficiency)
 
@@ -255,6 +262,8 @@ def check_adnl_connection_failed(self):
             self.send_alert("adnl_connection_failed")
 
     def check_status(self):
+        if not self.ton.using_alert_bot():
+            return
         if not self.inited:
             self.init()
 
diff --git a/modules/validator.py b/modules/validator.py
index 39317924..a0fdfa9c 100644
--- a/modules/validator.py
+++ b/modules/validator.py
@@ -54,10 +54,10 @@ def check_efficiency(self, args):
         end_time = timestamp2utcdatetime(config32.endWorkTime)
         color_print(f"Previous round time: {{yellow}}from {start_time} to {end_time}{{endc}}")
         if validator:
-            if validator.is_masterchain == False:
-                print(f"Validator index is greater than {config32['mainValidators']} in the previous round - no efficiency data.")
-            elif validator.get('efficiency') is None:
+            if validator.get('efficiency') is None:
                 print('Failed to get efficiency for the previous round')
+            elif validator.is_masterchain is False and validator.get('efficiency') != 0:
+                print(f"Validator index is greater than {config32['mainValidators']} in the previous round - no efficiency data.")
             else:
                 efficiency = 100 if validator.efficiency > 100 else validator.efficiency
                 color_efficiency = GetColorInt(efficiency, 90, logic="more", ending="%")
@@ -74,7 +74,7 @@ def check_efficiency(self, args):
         end_time = timestamp2utcdatetime(int(get_timestamp()))
         color_print(f"Current round time: {{green}}from {start_time} to {end_time}{{endc}}")
         if validator:
-            if validator.is_masterchain == False:
+            if validator.is_masterchain is False and validator.efficiency != 0:
                 print(f"Validator index is greater than {config34['mainValidators']} in the current round - no efficiency data.")
             elif (time.time() - config34.startWorkTime) / (config34.endWorkTime - config34.startWorkTime) < 0.8:
                 print("The validation round has started recently, there is not enough data yet. "
diff --git a/mytoncore/functions.py b/mytoncore/functions.py
index 148c07d1..0dd136ff 100755
--- a/mytoncore/functions.py
+++ b/mytoncore/functions.py
@@ -569,9 +569,8 @@ def General(local):
     from modules.custom_overlays import CustomOverlayModule
     local.start_cycle(CustomOverlayModule(ton, local).custom_overlays, sec=60, args=())
 
-    if ton.get_mode_value('alert-bot'):
-        from modules.alert_bot import AlertBotModule
-        local.start_cycle(AlertBotModule(ton, local).check_status, sec=1000, args=())
+    from modules.alert_bot import AlertBotModule
+    local.start_cycle(AlertBotModule(ton, local).check_status, sec=60, args=())
 
     thr_sleep()
 # end define
diff --git a/mytonctrl/resources/translate.json b/mytonctrl/resources/translate.json
index 929eea8a..22915e59 100644
--- a/mytonctrl/resources/translate.json
+++ b/mytonctrl/resources/translate.json
@@ -445,9 +445,9 @@
 		"zh_TW": "{red}錯誤 - 驗證器的 UDP 端口無法從外部訪問.{endc}"
 	},
 	"slashed_warning": {
-		"en": "{red}You were fined by {0} TON for low efficiency in the previous round.{endc}",
- 		"ru": "{red}Вы были оштрафованы на {0} TON за низкую эффективность в предыдущем раунде.{endc}",
- 		"zh_TW": "{red}您因上一輪效率低而被罰款 {0} TON。{endc}"
+		"en": "{{red}}You were fined by {0} TON for low efficiency in the previous round.{{endc}}",
+ 		"ru": "{{red}}Вы были оштрафованы на {0} TON за низкую эффективность в предыдущем раунде.{{endc}}",
+ 		"zh_TW": "{{red}}您因上一輪效率低而被罰款 {0} TON。{{endc}}"
 	},
 	"add_custom_overlay_cmd": {
 		"en": "Add custom overlay",