Apps exception: Documents app not installed

stefano.sb

Hi, when I try to use some functions in apps like TotalCommander or LANDrive I receive an exception/error like these. It seems that Documents app is not installed...
I have a GT-King B922 with fw version 912P0

Thanks
Stefano

Total Commander
App missing!
The 'Documents' app is not installed! It is needed to
choose the folder for write permissions.
Please contact your device vendor and complain that
app 'com.android.documentsui' is missing.

LANDrive -> Browse-> Internal Storage -> Import Files:
Java.Lang.RuntimeException: No Activity found to handle Intent { act=android.intent.action.OPEN_DOCUMENT typ=*/* flg=0x3 (has extras) }
  at Java.Interop.JniEnvironment+InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x00089] in <3d2dc1264afe46b1b9e39425326a457b>:0
........