Exception in task ProblemsetCacheUpdate

[vivekramnani]

After setting up the bot successfully using the given instructions, the bot was running but since the past few days it doesn't work

Upon running the run.sh file, I see the following log in the discord channel:

26-01-2021 12:18:13:WARNING:Task:Exception in task ProblemsetCacheUpdate, ignoring.
Traceback (most recent call last):
File "/home/ubuntu/TLE/tle/util/tasks.py", line 161, in _execute_func
await self.func(self.instance, arg)
File "/home/ubuntu/TLE/tle/cogs/cses.py", line 32, in _cache_data
await self._reload()
File "/home/ubuntu/TLE/tle/cogs/cses.py", line 40, in _reload
fast, short = await cses.get_problem_leaderboard(pid)
File "/home/ubuntu/TLE/tle/util/cses_scraper.py", line 30, in get_problem_leaderboard
tree = await _fetch(f'https://cses.fi/problemset/stats/%7Bnum%7D/%27)
File "/home/ubuntu/TLE/tle/util/cses_scraper.py", line 15, in _fetch
async with session.get(url) as response:
File "/home/ubuntu/.cache/pypoetry/virtualenvs/tle-OW8azPf2-py3.8/lib/python3.8/site-packages/aiohttp/client.py", line 1012, in aenter
self._resp = await self._coro
File "/home/ubuntu/.cache/pypoetry/virtualenvs/tle-OW8azPf2-py3.8/lib/python3.8/site-packages/aiohttp/client.py", line 504, in _request
await resp.start(conn)
File "/home/ubuntu/.cache/pypoetry/virtualenvs/tle-OW8azPf2-py3.8/lib/python3.8/site-packages/aiohttp/client_reqrep.py", line 847, in start
message, payload = await self._protocol.read() # type: ignore # noqa
File "/home/ubuntu/.cache/pypoetry/virtualenvs/tle-OW8azPf2-py3.8/lib/python3.8/site-packages/aiohttp/streams.py", line 591, in read
await self._waiter
aiohttp.client_exceptions.ServerDisconnectedError