I cannot connect to my GitHub account from Sourcetree (OS X)

[SHChang]

I cannot press the button to authorize atlassian, and there is no redirection for me to  grant the access. Due to the authorization, I cannot connect to my GitHub account from Sourcetree. Please help me!!! Thanks a lot!!! 

[Manju]

Can you please specify the version of Sourcetree you are using?
Also, please check if there is already a grant available for SourcetreeForMac in your Settings - https://github.com/settings/applications (Authorized OAuth Apps), remove the application and try again. 

If that doesn't help, please report here and we'll help you resolve this issue. 

Thanks!