Custom Item with can=can_i_damageable error

[GladieUO]

Once you place your custom item that has can=can_i_damageble on the ground, the error will show up.
15:08:ERROR:(Blighted_Grove.scp,495)Point(-1,-1): trying to get a sector for point on map #0 out of bounds for this map(7168,4096). Defaulting to sector 0 of the map.

[ITEMDEF i_blighted_pool]
ID=45852
NAME=Blighted Pool 
TYPE=t_normal
CAN=can_i_damageable

ON=@CREATE 
HITS=100
MAXHITS=100
MORE2=1
ATTR=attr_static
COLOR={254 1 763 1 1441 1 1801 1 2126 1 52 1 2002 1 661 1}