Weird error that shows randomly when running on Android

Hi all,

i got this error that shows randomly, every time i got this error i need to uninstall the app, then the error goes away... i don't know why this happens.

This is the log:

Forwarding debugger port 8873
Detecting existing process
[Zygote] MountEmulatedStorage()
[Zygote] v2
[SELinux] Function: selinux_compare_spd_ram, SPD-policy is existed. and_ver=SEPF_SM-G925P_5.0.2 ver=27
[SELinux] Function: selinux_compare_spd_ram , priority [1] , priority version is VE=SEPF_SM-G925P_5.0.2_0027
[SELinux] [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
[libpersona] KNOX_SDCARD checking this for 10359
[libpersona] KNOX_SDCARD not a persona
[art] Late-enabling -Xcheck:jni
[TimaKeyStoreProvider] TimaSignature is unavailable
[InjectionManager] Inside getClassLibPath + mLibMap{0=, 1=}
[ContextImpl] Unable to create files subdir /data/data/com.necomplus.artemismobile/cache
[InjectionManager] Inside getClassLibPath caller 
[ContextImpl] Unable to create files subdir /data/data/com.necomplus.artemismobile/files
[AndroidRuntime] Shutting down VM
[AndroidRuntime] FATAL EXCEPTION: main
[AndroidRuntime] Process: com.necomplus.artemismobile, PID: 20564
[AndroidRuntime] java.lang.RuntimeException: Unable to get provider mono.MonoRuntimeProvider: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.getAbsolutePath()' on a null object reference
[AndroidRuntime]    at android.app.ActivityThread.installProvider(ActivityThread.java:5701)
[AndroidRuntime]    at android.app.ActivityThread.installContentProviders(ActivityThread.java:5293)
[AndroidRuntime]    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5233)
[AndroidRuntime]    at android.app.ActivityThread.access$1600(ActivityThread.java:182)
[AndroidRuntime]    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1536)
[AndroidRuntime]    at android.os.Handler.dispatchMessage(Handler.java:102)
[AndroidRuntime]    at android.os.Looper.loop(Looper.java:145)
[AndroidRuntime]    at android.app.ActivityThread.main(ActivityThread.java:6141)
[AndroidRuntime]    at java.lang.reflect.Method.invoke(Native Method)
[AndroidRuntime]    at java.lang.reflect.Method.invoke(Method.java:372)
[AndroidRuntime]    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
[AndroidRuntime]    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
[AndroidRuntime] Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.getAbsolutePath()' on a null object reference
[AndroidRuntime]    at mono.MonoPackageManager.LoadApplication(MonoPackageManager.java:27)
[AndroidRuntime]    at mono.MonoRuntimeProvider.attachInfo(MonoRuntimeProvider.java:42)
[AndroidRuntime]    at android.app.ActivityThread.installProvider(ActivityThread.java:5698)
[AndroidRuntime]    ... 11 more