sdkbox admob on iPhone device crash

VERSION
sdkboxads/admob/googleplayservices 2.6.0.1
CocosCreator 2.3.3, 2.3.4, 2.4.0

DESCRIPTION
se->addRegisterCallback(register_all_PluginAdMobJS); will register sdkbox to se::Object then register and init PluginAdMob to sdkbox object.

It looks OK.

After se->start();, will call register_all_PluginAdMobJS_helper(se::Object* obj)
and try to get plugin “sdkbox.PluginAdMob”.

The steps like register_all_PluginAdMobJS, first get sdkbox from se::Object, then get PluginAdMob form sdkbox object. The second step has a crash, because of it got a Undefined object.

Please SDKBOX CocosCreater developer to fix the bug!
Thx!