It seems your access is not working please provide a workable access so that we can have a look. Also send us a guest access so that we can check on that too. http://prntscr.com/opfhy5
By the way it doesn’t happen before with any of our client i think there must be some issue with your setting or hosting. I think your hosting is unable to set the cookies. Anyway send us the appropriate access so that we can have a look at the issue.