Fix race condition which could cause crahses on start

app.py

 """
 
 from matrix_client.client import MatrixClient
+
 import discord
-from discord import Webhook, RequestsWebhookAdapter
+import requests
 import re
+
 from config import *
 
 matrix_client = MatrixClient(matrix_homeserver)
 guild = None
 channel = None
 emojis = {}
-webhook = None
 
 @discord_client.event
 async def on_ready():
 	channel = discord_client.get_channel(discord_channel)
 	guild = channel.guild
 	emojis = {":{}:".format(emoji.name): "<:{}:{}>".format(emoji.name, emoji.id) for emoji in guild.emojis}
-	webhook = Webhook.from_url(webhook_url, adapter=RequestsWebhookAdapter())
 
 @discord_client.event
 async def on_message(message):
 
 def send_webhook(username, avatar_url, content, matrix_id):
 	unmatched_messages_cache[username] = matrix_id;
-	webhook.send(content=content, username=username, avatar_url=avatar_url)
+
+	payload = {}
+
+	payload['content'] = content
+	payload['avatar_url'] = avatar_url
+	payload['username'] = username
+
+	for tries in range(5):
+		r = requests.post(webhook_url, data = payload)
+		if r.ok:
+			return
+		else:
+			print(r.status_code)
 
 def prepare_discord_content(content):
 	content = content.replace("@everyone", "@\u200Beveryone")