Crash: Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'android.widget.ExpandableListAdapter on a null object ref

[giomfo]

Tchap Build : 77
Tchap Version : 1.1.1_a (G-66163c55b-2020-12-18 14:08:48 +0100)
SDK Version : 0.9.37-dev (184214f2e-2020-11-18 01:42:26 +0100)
Phone : SM-G975U1 (G975U1UES4ETL1 10 REL)
Memory statuses
usedSize 67 MB
freeSize 1 MB
totalSize 68 MB
Thread: main, Activity:fr.gouv.tchap.version.TchapVersionCheckActivity, Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'android.widget.ExpandableListAdapter android.widget.ExpandableListView.getExpandableListAdapter()' on a null object reference
at im.vector.fragments.VectorRoomDetailsMembersFragment$5.run(VectorRoomDetailsMembersFragment.java:428)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8167)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)

[giomfo]

Note: We are not supposed to run "VectorRoomDetailsMembersFragment" whereas the app is checking its version (TchapVersionCheckActivity)
This last activity is used when the app is resume (I think)