Error on legitimatePropertyLease-dutch-initial-auction procedure creation

response from procedures

424 {"message": "Failed to create auction"}

Traceback from auction service

AUCTION-ID: None
Traceback (most recent call last):
  File "/auction/prozorro_sale/auction/errors.py", line 95, in request_localized_errors_middleware
    return await handler(request)
  File "/auction/prozorro_sale/auction/databridge.py", line 40, in create_auction
    auction = builder.build_from_procedure_spec(procedure, auction_type)
  File "/auction/prozorro_sale/auction/models/builder.py", line 55, in build_from_procedure_spec
    auction = auction_model.from_procedure(common_data, procedure)
  File "/auction/prozorro_sale/auction/packages/dutch/auction.py", line 102, in from_procedure
    'minimalStepAmount': procedure['minimalStep']['amount'],
KeyError: 'amount'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/aiohttp/web_protocol.py", line 422, in _handle_request
    resp = await self._request_handler(request)
  File "/usr/local/lib/python3.9/site-packages/aiohttp/web_app.py", line 499, in _handle
    resp = await handler(request)
  File "/usr/local/lib/python3.9/site-packages/aiohttp/web_middlewares.py", line 119, in impl
    return await handler(request)
  File "/usr/local/lib/python3.9/site-packages/prozorro_sale/tools/logging.py", line 66, in request_id_middleware
    response = await handler(request)
  File "/auction/prozorro_sale/auction/logging.py", line 66, in auction_id_middleware
    return await handler(request)
  File "/auction/prozorro_sale/auction/errors.py", line 101, in request_localized_errors_middleware
    code, message = ERROR_DICT[type(ex)]
KeyError: <class 'KeyError'>