I have installed vanilla sitecore commerce version 9.3 on my local machine. I have created a new environment "CustomEnvironment" and created a new catalog "client_catalog" and created "client_pricebook".

Now i am trying to associate the pricebook to the catalog by by associating catalog in pricebook section. But i am getting an error "Catalog name already in use" 

I have tried to clean environment,bootstrap environment and initialize environment as suggested in sitecore documentation but it is still showing the same error.

Any suggestions?

[![enter image description here][1]][1]
 

  [1]: https://i.sstatic.net/pNfi1.png