Problem with the limit of sync

Problem with the limit of sync

Goodmorning!

I have a problem with my zoho campaign account : I know that the limitation of sync with zoho CRM is 5 per day, but Idon't achieve to sync a new list for the first time. I didn't use my 5 sync per day, or my 15 sync per moth but the website tells me that I already used my 5 sync per day and that I have to wait 24 hours. 
Also, even after 24 hours, the contact never syncronised with the zoho CRM list.

Hope you can help, thank you!