Encrypting zip files crashes or doesn't start

Encryption of zip (60MB) crashes:

06-22 09:06:49.075 com.amaze.filemanager E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.amaze.filemanager, PID: 11281
    java.lang.RuntimeException: Unable to start service com.amaze.filemanager.asynchronous.services.EncryptService@dfa13ac with null: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Parcelable android.content.Intent.getParcelableExtra(java.lang.String)' on a null object reference
        at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3045)
        at android.app.ActivityThread.-wrap17(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1452)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5443)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Parcelable android.content.Intent.getParcelableExtra(java.lang.String)' on a null object reference
        at com.amaze.filemanager.asynchronous.services.EncryptService.onStartCommand(EncryptService.java:75)
        at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3028)
        at android.app.ActivityThread.-wrap17(ActivityThread.java) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1452) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:148) 
        at android.app.ActivityThread.main(ActivityThread.java:5443) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 

Or doesn't even start, but after I select encrypt again, it says "waiting for other task to finish". And after trying to reopen the app it crashes:

06-22 09:06:49.075 ? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.amaze.filemanager, PID: 11281
    java.lang.RuntimeException: Unable to start service com.amaze.filemanager.asynchronous.services.EncryptService@dfa13ac with null: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Parcelable android.content.Intent.getParcelableExtra(java.lang.String)' on a null object reference
        at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3045)
        at android.app.ActivityThread.-wrap17(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1452)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5443)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Parcelable android.content.Intent.getParcelableExtra(java.lang.String)' on a null object reference
        at com.amaze.filemanager.asynchronous.services.EncryptService.onStartCommand(EncryptService.java:75)

Start at EncryptService.onStartCommand, especially line 75, and trace how the service is started for a 60MB encrypted zip. Reproduce the crash and the subsequent “waiting for other task to finish” state if possible. Done means encryption starts reliably and reopening the app does not crash or leave the task stuck.