Minetest Android Crash

crash

E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: An unhandled exception occurred: Failed to save block: attempt to write a readonly database
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: In thread aba77310:
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: jni/../jni/src/server.cpp:73: virtual void* ServerThread::run(): A fatal error occured: Failed to save block: attempt to write a readonly database
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: Debug stacks:
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: DEBUG STACK FOR THREAD ab6e5c38: 
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: #0  int main(int, char**)
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: DEBUG STACK FOR THREAD aba77310: 
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: #0  virtual void* ServerThread::run()
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: DEBUG STACK FOR THREAD abcc01b0: 
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: #0  virtual void* UpdateThread::run()
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: DEBUG STACK FOR THREAD abce2540: 
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: #0  virtual void* EmergeThread::run()
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: DEBUG STACK FOR THREAD aca8ea78: 
E/Minetest( 6586): 2016-12-08 17:10:21: ERROR[Server]: #0  virtual void* UpdateThread::run()
F/libc    ( 6586): Fatal signal 6 (SIGABRT), code -6 in tid 6634 (Server)
I/art     ( 2731): Explicit concurrent mark sweep GC freed 46138(3MB) AllocSpace objects, 46(920KB) LOS objects, 38% free, 25MB/41MB, paused 2.335ms total 179.961ms
I/AlarmManager(  867): [FXN.ASD]set  [type=0 trigger on=(+29m59s995ms) repeatInt=0 repeatInt=PendingIntent{3bc6a327: PendingIntentRecord{1f0924cd com.google.android.apps.maps broadcastIntent}} worksource = null]
I/DEBUG   (  303): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG   (  303): Build fingerprint: 'Sony/E2303/E2303:5.0/26.1.A.3.111/1712026759:user/release-keys'
I/DEBUG   (  303): Revision: '0'
I/DEBUG   (  303): ABI: 'arm'
I/DEBUG   (  303): pid: 6586, tid: 6634, name: Server  >>> net.minetest.minetest <<<
I/DEBUG   (  303): signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
I/DEBUG   (  303):     r0 00000000  r1 000019ea  r2 00000006  r3 00000000
I/DEBUG   (  303):     r4 e1549dd8  r5 00000006  r6 00000058  r7 0000010c
I/DEBUG   (  303):     r8 aba77318  r9 aba77318  sl f71e2021  fp e1549dd0
I/DEBUG   (  303):     ip 000019ea  sp e1549cd0  lr f71e2859  pc f7208690  cpsr 600f0010
I/DEBUG   (  303): 
I/DEBUG   (  303): backtrace:
I/DEBUG   (  303):     #00 pc 00039690  /system/lib/libc.so (tgkill+12)
I/DEBUG   (  303):     #01 pc 00013855  /system/lib/libc.so (pthread_kill+52)
I/DEBUG   (  303):     #02 pc 00014473  /system/lib/libc.so (raise+10)
I/DEBUG   (  303):     #03 pc 00010cad  /system/lib/libc.so (__libc_android_abort+36)
I/DEBUG   (  303):     #04 pc 0000f1f4  /system/lib/libc.so (abort+4)
I/DEBUG   (  303):     #05 pc 00551d0f  /data/app/net.minetest.minetest-1/lib/arm/libminetest.so (fatal_error_fn(char const*, char const*, unsigned int, char const*)+226)
I/DEBUG   (  303):     #06 pc 006d0197  /data/app/net.minetest.minetest-1/lib/arm/libminetest.so (ServerThread::run()+682)
I/DEBUG   (  303):     #07 pc 008df42f  /data/app/net.minetest.minetest-1/lib/arm/libminetest.so (Thread::threadProc(void*)+66)
I/DEBUG   (  303):     #08 pc 0001303f  /system/lib/libc.so (__pthread_start(void*)+30)
I/DEBUG   (  303):     #09 pc 00011017  /system/lib/libc.so (__start_thread+6)