Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
with facebook login and without facebook login I can log in to your site without any issue.
seem the issue with FB App owner it self. please add my FB username: albertusputra to your FB App administrator list.
and provide me FTP access detail by editing your first post at this topic. put it at site info form.