Getting TypeError in every Command

Every time when I’m trying access my DB for any CRUD operation I’m getting this below error

uncaught exception: TypeError: db.auth.insert is not a function

Searched a lot but didn’t get any answer. Normal commands are working like show dbs, show collections all are working.

I’m using MongoDB Community edition 4.4.

Thanks in advance

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Welcome to the community!
It is a syntax error
What is pos in your command?
If its is dbname no need to mention it as you are already connected to it by use db command
Just use db.collection.insert(…) or db.collection.find(…) and so on