Hi @lancong,
The first thing I notice here is that you are using qiime2-2021.2 version, is there a reason you are using this version? It might help to update to one of our latest versions!
Searching the forum for this error I found several posts where this issue has been resolved. Please check them out and see if you can use the solutions there!
This one was solved by updating the WSL1 to WSL2. Can you tell me a little bit more about your machine and operating system?
-Hannah