You have lost your online connection

When i want to connect to the game i have this message 

^you have lost your online connection. Check your home network. You will not be able to access FC’s online features until you can reconnect to EA servers. Go to ea.com/unable-to-connect to find out more ^

i have good internet connection but I don’t know why I can’t join 

this in one account but when I switch to other account i can join normally