i found this in the debug file:
wait(MY.SKILL1);
ent_remove(me);

and in my plBiped01 i found:
{
diag("\nWARNING! PlBiped01::PlBiped01- Two or more PlBiped01 entities in level.");
wait(1); ent_remove(me);
return;
}

and in trigger00 i found:
//remove from level
my.passable = on;
(few other things)
wait(1);
ent_remove(me);
}

and in lift01 i found:
if(my._link_id__0e <= 0)
{
diag("\nWARNING! Lift01::Lift01_Linked - Bad link id. Entity removed");
ent_remove(me);

in levels00:
//remove ".wmb" from all strings
str_trunc(levels00_1_str,4)
(etc.)

i appreciate this help.
thankyou