On the VMC console page > API tokens you would see below message :
VLCR version 7.27.3.0 or later
This is expected as API tokens are not used in 7.27.30 version+. OAuth is used. So API token being expired won't cause any issue.
API tokens replaced by OAuth 2.0 Apps for inter-service authentication. VMware Live Cyber Recovery now leverages OAuth 2.0 apps to communicate with VMware Cloud Services backend services and VMware Cloud on AWS, replacing the former usage of API tokens. For current users, when your existing API tokens expire they will automatically be replaced with the new OAuth apps. For more information, see Authorize VMware Live Cyber Recovery.