Hi! Sorry for the delay in answering and this problem you are having! I don't put a 'security code' or 'lock' on any of the versions, in fact they are completely free and I don't receive any money from any source.
Which version is this problem coming from? pc, android, linux or ios? If you can tell me exactly where you're asked for a code or a screen capture, it will be very useful in trying to solve this problem. Although if it is in the game it is 100% my fault. The next build is coming soon and I promise to fix this.
Again, I apologize for this inconvenience you have had.
-Ez3