It just can't connect to wifipineapple website to get the public ip due to some technical difficulties (probably beacuse of added ssl and changes in their website). Hopefully they'll fix it soon. You can check if you really have an internet connection by SSHing in your WiFiPineapple and then trying to ping some host. You can issue a ping command somewhere in web gui too.
MKIV is pretty much useless for me now. Even opkg update stopped working. Urls were changed and https was added on cloud.wifipineapple.com What I need is networkmanager, tcpdump and reaver. Is there any chance of installing it to my MKIV as soon as possible?