https://www.buildbox.com/forum/index.php?threads/android-heyzap-mediation-tutorial.4037/ i did everything @Christoph said in Part1 and Part2.but when ı try to play my game on Droid4x it shows stopped working.ı tried on my android device too.
What is this? Turkish? Nobody will be able to help you with that information. The only thing I can recommend you is to try to repeat the tutorial step by step looking out not to miss anything. Also, try to run the game without ads at all and see if it works. If not the problem isn't even by the Heyzap implementation.