Solved Can't update signs

I've been trying this for weeks now, and it doesn't work.

Code:java

 
    private void updateSign(Location loc)
    {
        Sign sign = (Sign) loc.getBlock().getState();
 
        World targetWorld = plugin.getServer().getWorld(sign.getLine(1));
        if(targetWorld == null)
        {
            sign.setLine(1, ChatColor.DARK_RED + sign.getLine(1));
            sign.setLine(2, ChatColor.BLACK + ("0 / 8"));
        }
        else
        {
            sign.setLine(1, ChatColor.DARK_GREEN + sign.getLine(1));
            sign.setLine(2, ChatColor.BLACK + (targetWorld.getPlayers().size() + " / 8"));
        }
 
        sign.setLine(0, "");
        sign.setLine(3, "");
 
        sign.update();
    }

The sign only updates when the location is sent from a database, but not from signchangeevent (event.getBlock().getLocation()).
How can I fix this ?

 

"signchangeevent"

I guess you did get the sign in the event, you cancelled the event, and you also used your void right?

 

I didn't think about cancelling the event, thanks

 

Alright, also make sure to register your events.