Set player to ignore-list if teleport didnt succeed

src/main/java/eu/ruekov/ruakij/LinkedBeaconTeleporters/listener/OnCustomPlayerMove.java

@@ -95,6 +95,7 @@ public class OnCustomPlayerMove implements CustomPlayerMoveEventListener {
             if(safeBlock == null){
                 // No safe location found
                 p.sendMessage("§cNo safe-location found at target teleporter");
+                playerBeaconLocation.put(uuid, lbtBlock);
                 return;
             }
             // TODO: Check if there is enough space for a player