Djamil Legato wrote:
Edit templates/rt_mixxmag_j15/js/rokmodtools.js and at line 18 lower the daysExpire: '365', option from 365 to, for example, 30 days or less.
The reason you're facing this issue is due to a cookie limit size of browsers which is of 4kb, yours above is 8kb. So many bytes are probably caused by the big amount of modules you've on your site.
Unfortunately this is a browsers limitation and there's not really much we can do, but you can make the cookie autoclean itself earlier, this should fix the issue.