Android App crashes

[zjamshidi]

Issue / Feature - I'm using epub_viewer: ^0.1.9 in my flutter app which depends on com.jideguru:folioreader:0.6.2 and I'm getting crashes:

Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.avayehamrah.motiveex/com.folioreader.ui.activity.FolioActivity}: l.e
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
       at android.app.ActivityThread.-wrap11(ActivityThread.java)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:164)
       at android.app.ActivityThread.main(ActivityThread.java:6494)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
       
Caused by l.e
       at com.folioreader.ui.activity.FolioActivity.onCreate(FolioActivity.java:229)
       at android.app.Activity.performCreate(Activity.java:7009)
       at android.app.Activity.performCreate(Activity.java:7000)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
       at android.app.ActivityThread.-wrap11(ActivityThread.java)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:164)
       at android.app.ActivityThread.main(ActivityThread.java:6494)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

FolioReader version - com.jideguru:folioreader:0.6.2
FolioReader Stock / Modified -
Android SDK - The crash is happening on Android 8.1.0
Mobile / Tablet / Emulator Info - Nexus 5X
Steps to reproduce / Describe in detail - Since I'm getting the crash report, I don't know how to reproduce it.