[ICE: 6] Call revert exception

[Kate]

Describe the bug
UI error in Connext UI

call revert exception [ See: https://links.ethers.org/v5-errors-CALL_EXCEPTION ] (method="allowance(address,address)", data="0x", errorArgs=null, errorName=null, errorSignature=null, reason=null, code=CALL_EXCEPTION, version=abi/5.7.0)

Link to ticket in Intercom
https://app.intercom.com/a/inbox/qge2vd8z/inbox/tickets/1326/linked-conversations?show_bulk_edit_modal=false&view=List