Fix another crash. Change fire ball explosive damage to fire

mods/lord/Core/projectiles/src/projectiles/entity.lua

@@ -55,9 +55,13 @@ end
 --- @param entity LuaEntity  entity to check if it is a projectile
 --- @return       boolean    true, if it is a projectile, or false
 local function is_entity_projectile(entity)
+	if not entity then
+		return
+	end
+	local entity_name = entity:get_luaentity().name
 	local registered_projectiles = projectiles.get_projectiles()
 	for _, reg in pairs(registered_projectiles) do
-		if reg.entity_name == entity:get_luaentity().name then
+		if reg.entity_name == entity_name then
 			return true
 		end
 	end
@@ -115,12 +119,12 @@ local function hit_handling(projectile, target, damage_groups, velocity)
 		return punch_target(projectile, target, damage_groups, projectile._remove_on_object_hit, { fleshy = damage })
 	end
 	-- Hit player
-	if target:is_player() then
+	if target and target:is_player() then
 		play_sound_on_hit(projectile, "object")
 		hit()
 	else
 		-- Hit another projectile
-		if is_entity_projectile(target) then
+		if target and is_entity_projectile(target) then
 			projectile.object:set_acceleration({x = 0, y = GRAVITY * -1, z = 0})
 			target:set_acceleration({x = 0, y = GRAVITY * -1, z = 0})
 			play_sound_on_hit(projectile, "object")

mods/lord/Tools/lord_projectiles/src/lord_projectiles/config.lua

@@ -269,7 +269,7 @@ return {
 					local rad_vec = vector.new(radius, radius, radius)
 					local min_pos = vector.subtract(pos, rad_vec)
 					local max_pos = vector.add(pos, rad_vec)
-					projectiles.explode_area(pos, radius, 5, projectile.object, { fleshy = 15 })
+					projectiles.explode_area(pos, radius, 5, projectile.object, { fire = 10 })
 					minetest.add_particlespawner({
 						pos = {
 							min = min_pos,