Unable to renew Flex Gateway registration file

Renewing the Flex Gateway registration file fails with the following errors:

flex-agent[xxxxxx]: [flex-gateway-agent][info] Reading config file '/usr/local/share/mulesoft/flex-gateway/conf.d/registration.yaml'
flex-agent[xxxxxx]: [flex-gateway-agent][error] error getting valid resources from file: /usr/local/share/mulesoft/flex-gateway/conf.d/registration.yaml; cause: open /usr/local/share/mulesoft/flex-gateway/conf.d/registration.yaml: permission denied

flex-agent[xxxxxx]: [flex-gateway-agent][error] Processing commands errors: (Extension default/http-basic-authentication-wasm: the registration configuration is missing), (Extension default/ip-allowlist-wasm: the registration configuration is missing)