Rinkeby asset seems to fail on create order

[ksuhara]

Describe the bug cannot create offer of rinkeby asset internal error 500 and if catch 'could not detect network'

Mumbai and polygon is working

To Reproduce Steps to reproduce the behavior:

• add rinkeby asset that you own through hasura
• access to asset page
• hit confirm button
• error occurs

[ksuhara]

Failed to load resource: the server responded with a status of 500 (Internal Server Error)

falling at hardhat/lib/order.ts public validate function could not detect network (event="noNetwork", code=NETWORK_ERROR, version=providers/5.6.8)

[ksuhara]

infura rpc url should not have / at the end.