Some iPhone users are having a problem with clubzapp (black screen). I have contacted clubzapp and they have just rectified the problem. Anyone who has the problem need to delete the app and reinstall it. Updating it will NOT resolve the issue. No information will be lost and all chat groups will still be available on the reinstalled app. 
Please pass this on to any of your friends etc who have mentioned the problem. Apologies for any inconvenience this has caused.

Eamonn Carey