Unable to connect to internet after the new update WiFi or 4g
This may help:
https://smallgiant.zendesk.com/hc/en-us/articles/115005092033-Troubleshooting-Connectivity-Issues
If you continue to have issues, please contact Game Support:
https://smallgiant.zendesk.com/hc/en-us/articles/360000542934-How-to-Contact-Support-v1-9-7-onwards-
I have a good 4Glte signal and can’t connect.
Please contact Support then, as I said above. 
How do I contact support if I can’t sign in to the game.
Click the link to the FAQ article given above. At the bottom of the article is a blue link titled “Submit a Request”. Click this to contact Game Support.