@dang21000
please do not write random useless things without any use or any solution.
what is off is on OP, for example… traffic-gen
But can I know or not why you never read the changelogs???
paste this on terminal and simply press reset button on 10 seconds.
/system device-mode
update activation-timeout=10s mode=advanced flagged=no flagging-enabled=yes bandwidth-test=yes container=no email=yes fetch=yes
hotspot=yes ipsec=yes l2tp=yes pptp=yes proxy=yes romon=yes scheduler=yes smb=yes sniffer=yes socks=yes traffic-gen=yes
zerotier=yes install-any-version=no partitions=yes routerboard=yes
for previous versions some items like install-any-version=no partitions=yes routerboard=yes must be removed, and mode=enterprise, etc. etc.