Application gets crashed and displays a Error in Thread(Fatal Signal)

In LogCat :

12-16 01:49:49.139: A/libc(790): Fatal signal 11 (SIGSEGV) at 0x0000000c (code=1), thread 806 (Thread-93)

12-16 01:49:49.169: A/libc(790): Fatal signal 11 (SIGSEGV) at 0x0000000c (code=1), thread 824 (Thread-112)

I wrote a code for creating Threads one by one when a button is clicked.It switches to multiple screens. when i tap on button multiple time my app is closing automatically,how to resolve this issue?