Placing objects

I suddenly cant make it work in 1.85

This is what i use:

lamp setPos [getpos lamp select 0, getpos lamp select 1 + 10]

But it just says: error division by zero.

I also tried just copy and pasting from the commandref:

player setPos [getpos player select 0, getpos player select 1 + 10]

Still division by zero

Try this:

this setpos [getpos this select 0, getpos this select 1, (getpos this select 2) +?]

thx m8!

Maybe BIS should upgrade their comref