2 bugfixes

* changing PvP state while playing a tournament is disallowed
* fix an error message receiver

functions.lua

@@ -81,10 +81,11 @@ unified_inventory.register_button("pvp", {
 	type = "image",
 	image = "pvp.png",
 	action = function(player)
+		local player_name = player:get_player_name()
 		if pvpplus.is_playing_tournament(player_name) then
 			minetest.chat_send_player(player_name, "PvP state cannot be changed while playing a tournament.")
 		else
-			pvpplus.pvp_toggle(player:get_player_name())
+			pvpplus.pvp_toggle(player_name)
 		end
 	end
 })

tournament.lua

@@ -55,9 +55,6 @@ end
 
 function pvpplus.start_tournament()
 	if tournament.running_tournament then
-		if tournament.starting_infos.starter then
-			minetest.chat_send_player(tournament.starting_infos.starter, "There is already a running tournament.")
-		end
 		return false, "There is already a running tournament."
 	end
 
@@ -135,7 +132,7 @@ function pvpplus.start_global_tournament()
 	end
 
 	-- Start the tournament
-	pvpplus.start_tournament()
+	return pvpplus.start_tournament()
 end
 
 function pvpplus.stop_tournament()
@@ -355,8 +352,7 @@ minetest.register_chatcommand("start_global_tournament", {
 		tournament.starting_infos.open_time = nil
 		tournament.starting_infos.start_time = os.time()
 
-		pvpplus.start_global_tournament()
-		return true
+		return pvpplus.start_global_tournament()
 	end
 })
 
@@ -487,7 +483,10 @@ minetest.register_chatcommand("tournament", {
 
 		-- Start tournament
 		minetest.after(starting_time, function(name)
-			pvpplus.start_tournament(name)
+			local ok, e = pvpplus.start_tournament()
+			if ok == false and e then
+				minetest.chat_send_player(name, e)
+			end
 		end, name)
 	end
 })