diff --git a/aiogram/dispatcher/ctx.py b/aiogram/dispatcher/ctx.py
index f1ecce68..18229125 100644
--- a/aiogram/dispatcher/ctx.py
+++ b/aiogram/dispatcher/ctx.py
@@ -7,7 +7,10 @@ from ..utils import context
 def _get(key, default=None, no_error=False):
     result = context.get_value(key, default)
     if not no_error and result is None:
-        raise RuntimeError(f"Context is not configured for '{key}'")
+        raise RuntimeError(f"Key '{key}' does not exist in the current execution context!\n"
+                           f"Maybe asyncio task factory is not configured!\n"
+                           f"\t>>> from aiogram.utils import context\n"
+                           f"\t>>> loop.set_task_factory(context.task_factory)")
     return result
 
 
diff --git a/aiogram/types/base.py b/aiogram/types/base.py
index 7a4bdd56..e291afe5 100644
--- a/aiogram/types/base.py
+++ b/aiogram/types/base.py
@@ -138,10 +138,8 @@ class TelegramObject(metaclass=MetaTelegramObject):
 
     @property
     def bot(self):
-        bot = get_value('bot')
-        if bot is None:
-            raise RuntimeError('Can not found bot instance in current context!')
-        return bot
+        from ..dispatcher import ctx
+        return ctx.get_bot()
 
     def to_python(self) -> typing.Dict:
         """