The amount of times to vote is 1 day so you have to wait 24 hours before voting again this system is automated and will caculate the exact time when 24 hours is up i suggest being patient before voting again.
This is late but I'm pretty sure that the staff said there was 1 voting link that you could vote twice a day. Idk if they got rid of that though and I dont know which link but yeah
I think all the voting sites are only able to vote every 24 hours now. have been testing it out for a couple of days already and it seems that all site resets at a 24hour mark!!
