Solved PlayerInteractEvent returning Errors

Hey guys so my PlayerInterractEvent is returning a bunch of errors whenever a player interacts with something that is not a block, like clicking the air. I would rather these errors not be there of coarse so I was wondering how I can fix them. My guess is just to check if the event.getClickedBlock is null or not but idk if that would actually work.

Here's my code for the event:

Code:

@EventHandler
    public boolean onPlayerInteract(PlayerInteractEvent event) {
        Player player = event.getPlayer();
        Block block = event.getClickedBlock();
        if (block.getState() instanceof Sign) {
            Sign sign = (Sign) block.getState();
            if (sign.getLine(0).equalsIgnoreCase("[control point]")) {
                String Arena = sign.getLine(1);
                int pc = plugin.cpm.GetPlayers(Arena);
                if (plugin.cpm.TryJoinArena(player, Arena) == true) {
                    pc++;
                    sign.setLine(2, pc + "/10");
                }
            }
        }
        else {
            return false;
        }
        return false;
    }

If you need to see more of my code, just let me know, but since the event does what it's supposed to, just returns a few errors, I didn't think you would need to see any other code.

Here's the error message saying that it could not be passed to the event.

HTML:

9:14:19 PM CONSOLE: ERROR]: Could not pass event PlayerInteractEvent to ControlPoint v0.1
9:14:20 PM CONSOLE: Method) ~[?:1.7.0]
9:14:20 PM CONSOLE: Source) ~[?:1.7.0]
9:14:20 PM CONSOLE: Source) ~[?:1.7.0]
9:14:20 PM CONSOLE: Source) ~[?:1.7.0]

Please note this error does not happen when the player places a block or actually clicks the sign like they are supposed to.

Nevermind I solved it, it was exactly what I thought it was

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

1. event.getClickedBlock() returns null if they're not actually clicking on a block.
2. Don't use state instanceof Sign. Instead check for Material.SIGN_POST or Material.WALL_SIGN.
3. A few of your variable and method names don't follow the proper naming conventions. Fix that.