Everyplay not working exported in Android project

I have a Unity app using Everyplay exported in an Android project.
When I run it I receive the following log and Everyplay is not starting.
I suspect some conflict with android support v4 lib.
Any suggestions?

05-03 21:37:26.171 8709-8786/me.nichel.weesh I/Unity: Setting BehaviourComponentFactory

(Filename: ./artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
05-03 21:37:26.363 8709-8786/me.nichel.weesh I/Unity: AndroidJavaException: java.lang.IllegalAccessError: Illegal class access: 'com.everyplay.Everyplay.c' attempting to access 'com.everyplay.Everyplay.b.a$2' (declaration of 'com.everyplay.Everyplay.c' appears in /data/app/me.nichel.weesh-1/base.apk)
java.lang.IllegalAccessError: Illegal class access: 'com.everyplay.Everyplay.c' attempting to access 'com.everyplay.Everyplay.b.a$2' (declaration of 'com.everyplay.Everyplay.c' appears in /data/app/me.nichel.weesh-1/base.apk)
at com.everyplay.Everyplay.c.u(Unknown Source)
at com.everyplay.Everyplay.c.<init>(Unknown Source)
at com.everyplay.Everyplay.Everyplay.<clinit>(Unknown Source)
at com.everyplay.Everyplay.Everyplay.configureEveryplay(Unknown Source)
at com.everyplay.Everyplay.unity.EveryplayUnity3DWrapper.initEveryplay(Unknown Source)
at com.unity3d.player.UnityPlayer.nativeRender(Native Method)
at com.unity3d.player.UnityPlayer.a(Unknown Source)
at com.unity3d.player.UnityPlayer$b$1.handleMessage(Unknown Source)
at android.os.Handler.dispatchMessage(