script:conv_str: cannot convert to string, defaulting to ""

[dennis259]

Triple Inferno dc

After Collecting all skull Disconected  Triple Inferno DC

[Error]: script:conv_str: cannot convert to string, defaulting to ""
[Debug]: Data: nothing (nil)
[Debug]: Source (NPC): Tierra_TI (invisible/not on a map)
[Warning]: mapindex_name2id: Requested id for non-existant map name ''.
[Error]: Server received crash signal! Attempting to save all online characters!

Script: 

OnValidateScore:
    if( $@BG_Status != 1 || getvariableofnpc(.BG_Arena$,"BG_Queue_Join") != "Tierra_TI" )
        end;