Hi,
You need to verify that you've created the caribbeancoin.conf file into the folder “%APPDATA%\caribbeancoin\”.
Then you need to be sure the line "addnode=212.24.110.29" or "addnode=212.24.97.79" has been inserted in this caribbeancoin.conf file.
When you start your wallet just verify that you are connected to a node with this icon at the bottom right of the screen https://thecaribbeancoin.best/1.png
Then you have to wait for the entire synchronization time. It may vary depending on your hardware type, your Location, and your Internet Speed.
Starting the mine.bat file to solo mine with your CPU can improve the time of your synchronization.
It takes 3O min to 6hours.