the extension not available in the hub after being imported into qmc

[cindy_user]

hi，

I often encounter such problems. After I download an extension, it can be successfully imported into qmc.
But when I used this control during analysis, I automatically logged out.

Could this be related to the inability to pass authentication in the code?

Does anyone know what causes this? How to solve it?

What I also want to ask is that the status of an extension that cannot be used is sometimes different.
For example, this extension cannot be used because the user has logged out.
I also encountered a situation where the display server exceeded the maximum number of connections.
In many cases, I don’t know where to start to solve the problem. Is this a certification issue?
I would be very grateful if anyone could reply.