Link error in health static code analysis posting code.

It may be because the data in the nucleic acid library needs to be read to generate the health code, and too many people query at the same time, which leads to the overload of the interface and the overflow of the background memory, which leads to the failure of reading and the failure of generating the health code.

This may happen in rush hour scenes. It is suggested to stagger the rush hour and try refreshing again after a while.

"Sticking code" is one of the common scanning methods of "health code", which can be divided into institutional "sticking code" and personal "sticking code". Institutions and individuals can quickly apply for exclusive "stickers" for visitors to scan, thus realizing the registration of health information.