revert back to fetching guild & channel at every trigger

src/cogs/repeated_messages.py

@@ -7,13 +7,13 @@ class RepeatedMessages(commands.Cog):
 
     def __init__(self, bot: commands.Bot):
         self.bot = bot
-        self.uiog_server = self.bot.get_guild(747542543750660178)
 
         @aiocron.crontab('0 0 * * 5')
         async def fredag():
             """Sends a message on Friday at 00:00"""
 
-            channel = await self.uiog_server.fetch_channel(747542544291987597)
+            guild = self.bot.get_guild(747542543750660178)
+            channel = guild.get_channel(747542544291987597)
             await channel.send(
                 'NU ÄR DET FREDAG!\n' +
                 'https://cdn.discordapp.com/attachments/750052141346979850/851216786259181578/video0.mp4'
@@ -23,7 +23,8 @@ class RepeatedMessages(commands.Cog):
         async def mandag():
             """Sends a message on Monday at 00:00"""
 
-            channel = await self.uiog_server.fetch_channel(747542544291987597)
+            guild = self.bot.get_guild(747542543750660178)
+            channel = guild.get_channel(747542544291987597)
             await channel.send(
                 'ENDELIG MANDAG!\n\n' +
                 'https://cdn.discordapp.com/attachments/678396498089738250/862853827278929940/hvorfor_de_rike_br_spises.mp4'
@@ -33,7 +34,8 @@ class RepeatedMessages(commands.Cog):
         async def new_year():
             """Sends a message on New Year's Day at 00:00"""
 
-            channel = await self.uiog_server.fetch_channel(747542544291987597)
+            guild = self.bot.get_guild(747542543750660178)
+            channel = guild.get_channel(747542544291987597)
             await channel.send(
                 'GODT NYTTÅR!\n\nNå, meld dere inn i UiO Gaming igjen <:ThisIsAThreat:874998234072903710>'
             )