fixes for bugs found by bishop

classes/spearhead_db.lua

@@ -355,7 +355,7 @@ do -- DB
                                     functionString = functionString .. " { x=" .. vecpoint.x .. ", y=0,z=" .. vecpoint.z ..
                                     "},"
                                 end
-                                functionString = functionString .. "{0,1,0,1}, {0,0,0,1}, 1)"
+                                functionString = functionString .. "{0,1,0,1}, {0,0,0,0}, 1)"
 
                                 env.info(functionString)
 ---@diagnostic disable-next-line: deprecated

classes/spearhead_events.lua

@@ -303,6 +303,8 @@ do
         local function CheckAndTriggerSpawnAsync(unit, time)
             local function isPlayer(unit)
                 if unit == nil then return false, "unit is nil" end
+                if unit.getGroup == nil then return false, 'no get group function in unit object, most likely static' end
+
                 if unit:isExist() ~= true then return false, "unit does not exist" end
                 local group = unit:getGroup()
                 if group ~= nil then