Learning Partner Yammer _ Not Accessible

From last few months I am trying to join Learning partner Yammer community, but it's not Accessible. I tried to find the solution by posting in many platforms. But no Solution..the link as follows: https://click.email.microsoftemail.com/?qs=09da3505b4704f9bbfbbe12b61da3eedf09fcb7bd3d2c5b703d3e74a294de2d501ff51066b12c6edc3cd9c65ccc62d0d5cd14fd0f382890e.

Anyone pls advise me
Thanks and Regards
Srinivas