diff --git a/pybtc/connector/utxo.py b/pybtc/connector/utxo.py
index ada5531..e74c169 100644
--- a/pybtc/connector/utxo.py
+++ b/pybtc/connector/utxo.py
@@ -137,6 +137,8 @@ class UTXO():
             #     except:
             #         pass
             self.last_saved_block = lb
+        except:
+            self.log.critical("implement rollback  ")
         finally:
             self.save_process = False