diff --git a/main.py b/main.py
index c59f5a8..352f68b 100644
--- a/main.py
+++ b/main.py
@@ -20,9 +20,15 @@ def crawl():
 	# \____/\___/\__/  /_/ /_/\___/|__/|__/   \___/|___/\___/_/ /_/\__/____/
 
 	# Get events in the next year from RaPla
-	events = icalevents.events(url='https://rapla.dhbw-karlsruhe.de/rapla?page=ical&user=eisenbiegler&file=TINF19B4',
-							   http=http, start=datetime.strptime('2010-01-01', '%Y-%m-%d'),
-							   end=datetime.now() + timedelta(days=365))
+	try:
+		events = icalevents.events(
+			url='https://rapla.dhbw-karlsruhe.de/rapla?page=ical&user=eisenbiegler&file=TINF19B4',
+			http=http, start=datetime.strptime('2010-01-01', '%Y-%m-%d'),
+			end=datetime.strptime((datetime.now() + timedelta(days=365)).strftime('%Y-%m-%d'), '%Y-%m-%d'))
+	except ValueError as error:
+		# Value error sometimes happens because of a problem with dateutil and timezones
+		print("Error fetching ical events. Terminating." + str(error.with_traceback()))
+		exit(1)
 
 	#    ______     __     __      __            __         __      __           ____                        _____ ____    __
 	#   / ____/__  / /_   / /___ _/ /____  _____/ /_   ____/ /___ _/ /_____ _   / __/________  ____ ___     / ___// __ \  / /
@@ -146,7 +152,8 @@ def crawl():
 		#	2. If there is already a changeset for this event, is the latest known state that it is not deleted?
 		#	3. If there is no changeset for it yet, we can't check the latest known state so we just set it to deleted
 		#		-> this basically can't ever happen with real data but it happened during testing and it doesn't hurt to let in in here
-		if uid not in list(x.uid for x in events) and (uid in changeDict.keys() and not changeDict[uid][3] or uid not in changeDict.keys()):
+		if uid not in list(x.uid for x in events) and (
+				uid in changeDict.keys() and not changeDict[uid][3] or uid not in changeDict.keys()):
 			# Only insert if there is no 'deleted' record yet
 			deletedEvents.append(tuple([uid]))