Hello,
In the log, I have that :
Mar 12 20:18:15 unbound[48878:0] notice: init module 0: subnetcache
Mar 12 20:18:15 unbound[48878:0] warning: subnetcache: prefetch is set but not working for data originating from the subnet module cache.
Mar 12 20:18:15 unbound[48878:0] notice: init module 1: validator
Mar 12 20:18:15 unbound[48878:0] notice: init module 2: iterator
Mar 12 20:18:15 unbound[48878:0] info: start of service (unbound 1.17.1).
Mar 12 20:18:19 unbound[48878:0] info: generate keytag query _ta-4f66. NULL IN
Is the warning important ?