Hi Sen Gupta,
Do you mean the icon as shown here?:
https://www.screencast.com/t/for1SvzyPjrM
Seems like it was working fine as I click on it. If I understand you wrongly, perhaps can you explain in details on how to replicate this issue? It I need to login into the site first?
Regarding the login credential, seems like it was not working and I cannot access your backend as there is IP restriction.
This is our current IP: 175.139.128.56