Job for opennebula-flow.service/opennebula-gate.service canceled error on OpenNebula 6.0

I have 2 frontend HA, when I start service appear error

Job for opennebula-flow.service canceled.
Job for opennebula-gate.service canceled.

When I access to OneGate address localhost:5030, the page only shows: " Not authorized"

The Log has some rows as below:

X_ONEGATE_TOKEN header not preset
Unauthorized login attemp
OneGate server doesn’t support this feature

What should I do? Thank you!