This problem occurs because your OS (operating system) is out of date! Please make sure you have the latest OS version and continue jobbing from www.m4jam.com.
If you're an Android user, follow these instructions:
Menu -> Settings -> About Device.
Check to see if there are any available updates for you and if so, select to update your OS.
If you're on iOS (Apple iPhone) follow these instructions:
Menu -> Settings ->General -> Software updates
If this quick fix didn't help, please submit a request or chat to us.