Can you ask/type question in English so that it will be easy for understanding?
thank you !
Hi Wang Hui
Looks like you are using trail and buy license. Request you to check with techsupport team if license generated has exceed the demo period by logging into techsupport. It will also registed in techsupport website assigned to Site ID.
Additional Information :
KB00290 - What happens when a demo, temporary, Try and Buy, DevClub, or vCampus license file expires?
I checked the license ,It's still in use.
Then I restart the service（PI BASE SUBSYSTEM），I can create point on PI Server。
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