Jomsocial

If you're seeing a blank page, please go to the Joomla -> Global Configuration page and set the "Error Reporting" setting to "Maximum". Then, try to login again and let me know what error message appears. Once we know that, we should be able to help you narrow things down.

Another thing to try is simply disabling the Social Profiles - JomSocial plugin and see if that fixes the problem. That shouldn't be necessary, but will again help narrow things down to the specific problem.

Thanks,
Alex

Thanks for the report. It looks like a core file from JomSocial isn't being loaded properly on your site. To fix, please edit the /plugins/socialprofiles/jomsocial/jomsocial.php file. Around line 531, you'll see:Add the following line directly above that:That should fix you right up, but please let us know how it goes.

We'll include a similar fix in the 6.1.1 release to ensure you don't run into this issue again.

Thanks,
Alex