diff --git a/src/constants.py b/src/constants.py
index 5ad458c..7791bd4 100644
--- a/src/constants.py
+++ b/src/constants.py
@@ -1,5 +1,10 @@
 import os
+import sys
+
+token = os.getenv('TG_TOKEN', None)
+if token is None:
+    print('Please configure your token in environment variable TG_TOKEN first.')
+    sys.exit(0)
 
-token = os.environ['TG_TOKEN']
 font = os.getenv('FONT', None)
 dbPath = 'database.json'
diff --git a/src/scheduler.py b/src/scheduler.py
index 5df4a3d..0a52f28 100644
--- a/src/scheduler.py
+++ b/src/scheduler.py
@@ -41,8 +41,6 @@ class Scheduler:
 
         # Function to update a single task
         def updateTask(cache: CacheEntry):
-            print("DEBUG: Sending request - %s" % cache.name, nowText)
-
             request = self.database.reqs[cache.user][cache.name]
             if now - cache.time < request.get('interval', 120):
                 return
@@ -63,6 +61,8 @@ class Scheduler:
             cache.time = now
 
             if diff != '':
+                print("DEBUG: Diff detected - %s" % cache.name, nowText)
+
                 # Render diff
                 doc = BytesIO(render(diff))
                 fileName = 'diff %s %s.png' % (cache.name, nowText)
diff --git a/start.sh b/start.sh
index 4e3ab4e..70d6861 100644
--- a/start.sh
+++ b/start.sh
@@ -1,4 +1,5 @@
 source ./venv/bin/activate
 export PYTHONPATH=PYTHONPATH:$pwd
 export TG_TOKEN="Your token here"
+export FONT="sarasa-mono-cl-regular"
 python3 ./src/bot.py