crashing when online server join / local is fine

[tx96]

}
case FRAME_NET_UPDATE_END:
{
H::Entities.Store(); //this where crash happen and backtrack too?
F::Backtrack.Store();
break;
}
css server ip to test: 70.54.69.174:27015
map change like 2 or 3 time in server causes crash too
some screenshots:

overall i found out H::Entities.Store(); part causing crash if i disable it and inject everything is fine not sure if its null check or what more testing needed ? maybe issue with FRAME_NET_UPDATE_END? itself? @Viceroyy