Cannot log in after logging out

Giang,
I just created an account and tested on your site. I'm not sure what's happening with the login area as it's very strange. When I try to login, I'm brought to a completely white page with just a little bit of text. Is that what you're seeing? I think that's a session issue, which is a Joomla problem. The best way to test is to enable, temporarily, the mod_login module.. the standard Joomla Login module, and see if you have the same issue. If so, that means it's not a SCLogin problem.

Another thing I noticed was that your site looks to be affected by a bug we're investigating that is a conflict between JFBConnect and JomSocial. To fix, please disable the "Show 'logging in' popup" setting in JFBConnect. Without that, if you try to use the Login with Facebook feature on a JomSocial page, it may not reload the page.

I hope that helps,
Alex

Giang,
I just looked at your site. It's definitely a session token issue, but I'm not sure why. In both of the login modules there is a hidden 'token' for the user session. The token is different for both the SCLogin module and Login module, which is not correct. They should use the same token.

The token field looks like:
That is being inserted by the following line in our template file, which is how it's supposed to be done:
Do you have any template overrides setup for the SCLogin module? Is caching or any optimization plugin enabled on your site? I'd disable anything that's meant to speed things up on your site to see if that fixes the issue.

The Facebook login is likely affected by the same issue. We'll just need to understand why the session isn't being detected correctly by our module.

Thanks,
Alex

Giang,
I switched the Caching setting in Joomla from Progressive to Conservative, and that seemed to fix things. In general, the Conservative caching option is recommended. I'm not sure why Progressive was causing issues though, but I'd recommend using that setting for now.

Please test and let me know how it goes.

Thanks,
Alex