D7800 (OpenWrt 19.07.1) installed luci-app-ddns and got some problems

hi, all

i have NETGEAR D7800 upgrade to OpenWrt 19.07.1 r10911-c155900f66, install luci-app-ddns,

got some wrong message:

Sun Feb  9 13:11:35 2020 user.notice ddns-scripts[2743]: myddns_ipv6: PID 2743 started at 2020-02-09 13:11
Sun Feb  9 13:11:35 2020 user.notice ddns-scripts[2742]: myddns_ipv4: PID 2742 started at 2020-02-09 13:11
Sun Feb  9 13:11:35 2020 user.warn ddns-scripts[2742]: myddns_ipv4: Service section disabled! - TERMINATE
Sun Feb  9 13:11:35 2020 user.warn ddns-scripts[2743]: myddns_ipv6: Service section disabled! - TERMINATE
Sun Feb  9 13:11:35 2020 user.warn ddns-scripts[2742]: myddns_ipv4: PID 2742 exit WITH ERROR 1 at 2020-02-09 13:11
Sun Feb  9 13:11:36 2020 user.warn ddns-scripts[2743]: myddns_ipv6: PID 2743 exit WITH ERROR 1 at 2020-02-09 13:11

And website click to https://192.168.1.1/cgi-bin/luci/admin/services/ddns
Web show like below:

Failed to execute cbi dispatcher target for entry '/admin/services/ddns'.
The called action terminated with an exception:
/usr/lib/lua/luci/controller/ddns.lua:116: attempt to index field '?' (a nil value)
stack traceback:
	/usr/lib/lua/luci/controller/ddns.lua:116: in function 'service_version'
	/usr/lib/lua/luci/controller/ddns.lua:126: in function 'service_ok'
	/usr/lib/lua/luci/model/cbi/ddns/overview.lua:20: in function 'func'
	/usr/lib/lua/luci/cbi.lua:66: in function 'load'
	/usr/lib/lua/luci/dispatcher.lua:943: in function </usr/lib/lua/luci/dispatcher.lua:937>

i don't konw how to handle.

These messages are not wrong. This is normal, it says that DDNS is disabled for the sample IPv4 and IPv6 configs.

Something is wrong with the web page though. I'd suggest resetting to defaults and reinstalling the packages.

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I configured ip v4 finished. but it can't be start to run.

Did you follow @lleachii's advice about resetting and then reinstalling?

You might also need to install wget (I have had to do that for my installation). What error(s) are you seeing now that you've configured your ddns settings? Also, have you verified that everything is correct (no typos, etc.)?

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