diff --git a/cbpi/cli.py b/cbpi/cli.py
index 850b53a..0698462 100644
--- a/cbpi/cli.py
+++ b/cbpi/cli.py
@@ -175,7 +175,7 @@ def check_for_setup():
             zip.extractall(output_path)
             zip.close()
             if system != "Windows":
-                print("Changing owner and group of config folder recursively to {}:{}".format(owner,group))
+                print(f"Changing owner and group of config folder recursively to {owner}:{group}")
                 recursive_chown(output_path, owner, group)
             print("Removing backup file")
             os.remove(backupfile)
diff --git a/cbpi/controller/fermentation_controller.py b/cbpi/controller/fermentation_controller.py
index 1e2b3c6..8a749d4 100644
--- a/cbpi/controller/fermentation_controller.py
+++ b/cbpi/controller/fermentation_controller.py
@@ -95,7 +95,7 @@ class FermentationController:
         self.cbpi = cbpi
         self.logger = logging.getLogger(__name__)
         self.path = os.path.join(".", 'config', "fermenter_data.json")
-        self._loop = asyncio.get_event_loop() 
+        
         self.data = []
         self.types = {}
         self.steptypes = {}
@@ -472,7 +472,7 @@ class FermentationController:
             
             await item.instance.start()
             item.instance.running = True
-            item.instance.task = self._loop.create_task(item.instance._run())
+            item.instance.task = asyncio.get_event_loop().create_task(item.instance._run())
             
             logging.info("{} started {}".format(item.name, id))
             
diff --git a/cbpi/craftbeerpi.py b/cbpi/craftbeerpi.py
index fbbde3f..41ad6b3 100644
--- a/cbpi/craftbeerpi.py
+++ b/cbpi/craftbeerpi.py
@@ -88,7 +88,6 @@ class CraftBeerPi:
 
         self.static_config = load_config(os.path.join(".", 'config', "config.yaml"))
         
-        self.database_file = os.path.join(".", 'config', "craftbeerpi.db")
         logger.info("Init CraftBeerPI")
 
         policy = auth.SessionTktAuthentication(urandom(32), 60, include_ip=True)