Direct debit spotlight create authorization component crashes

[grctest]

Describe the bug

When I click 'create authorization' within the withdraw permission spotlight page it crashes.

To Reproduce

Go to the direct debit page: https://bts.exchange/#/direct-debit

Click 'create authorization' button 2 times.

Expected behavior

Dialog launches without problem.

Additional context

Errors:

ReferenceError: assignment to undeclared variable balance_fee

BindToChainState(t) ReferenceError: assignment to undeclared variable balance_fee

Also ocurring in the light client.

looking on kibana seems the last direct debit create operation 25 was june 5th 2023 so it's likely been broken for almost 2 years now.