diff --git a/dagflow/dagflow.py b/dagflow/dagflow.py
index 05ceb96..677ca4b 100644
--- a/dagflow/dagflow.py
+++ b/dagflow/dagflow.py
@@ -14,7 +14,7 @@ Features:
 import asyncio
 import yaml
 from random import randint
-from appPublic.log import debug
+from appPublic.log import debug, exception, error, info
 from appPublic.timeUtils import timestampstr
 from sqlor.dbpools import get_sor_context
 
@@ -153,8 +153,9 @@ where backid=${backid}$
 				aio = await sor.sqlExe(sql,{
 					'backid': self.backid
 				})
+			debug(f'aio={aio}')
 			for r in aio:
-				await elf.step(r)
+				await self.step(r)
 			await asyncio.sleep(1)
 
 	async def create_definition(self, org_id, name, description, version, dsl_text, ctxfields):