LIC-MR-ADV-1Y is Advanced Wireless license, and it only can apply to per-device license organization
https://documentation.meraki.com/MR/Other_Topics/Cisco_Meraki_and_Umbrella_Integration_-_MR_Advanced...
You have to get Enterprise license(LIC-MR-1Y) in order to apply to co-termination organization.
Therefore, I think you have to choose one of these options.
1. Convert organization from co-termination to per-device license. By this way, you can use already bought license, but you have to keep in mind difference between co-term. and per-device model.
2. If you want to keep co-termination model, you have to buy renewal license again with LIC-MR-1Y. In this case, you have to discard already bought licenses.