[Error] Request Entity Too Large

I got an error below in testnet, 1.2.3.

ERROR:root:Unexpected error in collect_pool_rewards_loop: 413, message='Request Entity Too Large', url=URL('https://localhost:8555/push_tx') Traceback (most recent call last):
  File "/home/chia/testnet/pool-reference/pool/pool.py", line 332, in collect_pool_rewards_loop
    push_tx_response: Dict = await self.node_rpc_client.push_tx(spend_bundle)
  File "/home/chia/testnet/pool-reference/venv/lib/python3.8/site-packages/chia/rpc/full_node_rpc_client.py", line 162, in push_tx
    return await self.fetch("push_tx", {"spend_bundle": spend_bundle.to_json_dict()})
  File "/home/chia/testnet/pool-reference/venv/lib/python3.8/site-packages/chia/rpc/rpc_client.py", line 42, in fetch
    response.raise_for_status()
  File "/home/chia/testnet/pool-reference/venv/lib/python3.8/site-packages/aiohttp/client_reqrep.py", line 1000, in raise_for_status
    raise ClientResponseError(
aiohttp.client_exceptions.ClientResponseError: 413, message='Request Entity Too Large', url=URL('https://localhost:8555/push_tx')

I think this is because my pool server has offline long time for about 4 days.

Does the HTTP server need to fix this problem?
I think it is related to the upload size.

Start with pool/pool.py around line 332 and trace the push_tx call through the Chia full-node RPC client to the /push_tx endpoint. Reproduce the 413 response using the reported four-day offline scenario, then determine which request-size handling component is responsible. Done means the reward collection request completes successfully or the responsible HTTP limit is clearly documented.