Internal Server Error: pretix_eth.models.WalletAddressError: No wallet addresses remain that haven't been used

[ligi]

stacktrace:

ERROR 2022-01-29 20:57:41,837 django.request log Internal Server Error: /devcon/test/order/70V9U/adl6at0uelvtooim/
Traceback (most recent call last):
  File "/var/pretix/venv/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/var/pretix/venv/lib/python3.8/site-packages/django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/var/pretix/venv/lib/python3.8/site-packages/django/views/generic/base.py", line 70, in view
    return self.dispatch(request, *args, **kwargs)
  File "/var/pretix/venv/lib/python3.8/site-packages/django/utils/decorators.py", line 43, in _wrapper
    return bound_method(*args, **kwargs)
  File "/var/pretix/venv/lib/python3.8/site-packages/django/views/decorators/clickjacking.py", line 50, in wrapped_view
    resp = view_func(*args, **kwargs)
  File "/var/pretix/venv/lib/python3.8/site-packages/pretix/presale/views/robots.py", line 41, in dispatch
    resp = super().dispatch(request, *args, **kwargs)
  File "/var/pretix/venv/lib/python3.8/site-packages/django/views/generic/base.py", line 98, in dispatch
    return handler(request, *args, **kwargs)
  File "/var/pretix/venv/lib/python3.8/site-packages/pretix/presale/views/order.py", line 204, in get
    return super().get(request, *args, **kwargs)
  File "/var/pretix/venv/lib/python3.8/site-packages/django/views/generic/base.py", line 159, in get
    context = self.get_context_data(**kwargs)
  File "/var/pretix/venv/lib/python3.8/site-packages/pretix/presale/views/order.py", line 271, in get_context_data
    ctx['last_payment_info'] = pp.payment_pending_render(self.request, ctx['last_payment'])
  File "/var/pretix/venv/src/pretix-eth-payment-plugin/pretix_eth/payment.py", line 245, in payment_pending_render
    wallet_address = WalletAddress.objects.get_for_order_payment(
  File "/var/pretix/venv/src/pretix-eth-payment-plugin/pretix_eth/models.py", line 49, in get_for_order_payment
    raise WalletAddressError(
pretix_eth.models.WalletAddressError: No wallet addresses remain that haven't been used

steps to reproduce:

• only upload one wallet address for the plugin
• initiate to make a payment with this plugin
• click on "Re-try payment or choose another payment method"
• select ETH or DAI again
• press "pay now"
• then the above error occurs

So either the previous wallet address should be reused or the address should be freed again