PullOracleHandler: Error calling contract: Cannot convert None of type <class 'NoneType'> to bytes

[dandagow3t]

Error in the logs:

2025-02-02 18:48:29,203 - ERROR - PullOracleHandler: Error calling contract: Cannot convert None of type <class 'NoneType'> to bytes
(<class 'TypeError'>, TypeError("Cannot convert None of type <class 'NoneType'> to bytes"), <traceback object at 0x7edfe0207b80>)
Traceback (most recent call last):
  File "/home/admin/liq-bot-v2/app/liquidation/liquidation_bot.py", line 856, in get_feed_ids
    asset_list = [Vault(collateral_vault, config).underlying_asset_address
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/liq-bot-v2/app/liquidation/liquidation_bot.py", line 54, in __init__
    self.underlying_asset_address = self.instance.functions.asset().call()
                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/liq-bot-v2/venv/lib/python3.12/site-packages/web3/contract/contract.py", line 305, in call
    return call_contract_function(
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/liq-bot-v2/venv/lib/python3.12/site-packages/web3/contract/utils.py", line 96, in call_contract_function
    return_data = w3.eth.call(
                  ^^^^^^^^^^^^
  File "/home/admin/liq-bot-v2/venv/lib/python3.12/site-packages/web3/eth/eth.py", line 260, in call
    return self._durin_call(transaction, block_identifier, state_override)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/liq-bot-v2/venv/lib/python3.12/site-packages/web3/eth/eth.py", line 279, in _durin_call
    return self._call(transaction, block_identifier, state_override)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/liq-bot-v2/venv/lib/python3.12/site-packages/web3/module.py", line 78, in caller
    return apply_result_formatters(result_formatters, result)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "cytoolz/functoolz.pyx", line 267, in cytoolz.functoolz.curry.__call__
  File "cytoolz/functoolz.pyx", line 263, in cytoolz.functoolz.curry.__call__
  File "/home/admin/liq-bot-v2/venv/lib/python3.12/site-packages/web3/module.py", line 49, in apply_result_formatters
    formatted_result = pipe(result, result_formatters)
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "cytoolz/functoolz.pyx", line 680, in cytoolz.functoolz.pipe
  File "cytoolz/functoolz.pyx", line 655, in cytoolz.functoolz.c_pipe
  File "/home/admin/liq-bot-v2/venv/lib/python3.12/site-packages/hexbytes/main.py", line 42, in __new__
    bytesval = to_bytes(val)
               ^^^^^^^^^^^^^
  File "/home/admin/liq-bot-v2/venv/lib/python3.12/site-packages/hexbytes/_utils.py", line 32, in to_bytes
    raise TypeError(f"Cannot convert {val!r} of type {type(val)} to bytes")
TypeError: Cannot convert None of type <class 'NoneType'> to bytes

2025-02-02 18:48:29,204 - ERROR - Vault: Failed to get account liquidity for account 0x8A25d8c9FA8c7a726137f2d618d85CBC2C083f79: Contract error - cannot unpack non-iterable NoneType object
None