My server got spammed and destroyed 2 calves

[NOTAD]

Last night I was hacked into a server and spamed a lot of strange characters with numbers, and then he threw away a lot of stuff.Is there any way to prevent spam and fix the 2-wall error when going into causing game crashes

[moisterrific]

Which version of TShock are you running?

[hakusaro]

At least in terms of your game world, you should open the world in TEdit and save it off. In general that's a good practice as it quite easily deals with anything that could be corrupted on the world itself or doesn't play nicely with Terraria anymore. Obviously, make a backup before you do this.

[sors89]

If you want to prevent player from spamming, just use AntiSpam by MarioE
https://github.com/Exodius-GG/AntiSpam/raw/master/AntiSpam/bin/AntiSpam.dll

[moisterrific]

It says method not found because the hook is trying to reference code that do not exist in the unofficial mobile port. You can easily fix it by checking what the method is for whichever mobile fork you’re using and updating it for compatibility.

[NOTAD]

How to search method

[sors89]

Can i get your references in your ServerPlugins folder @NOTAD ?

[NOTAD]

Oke

[NOTAD]

http://f.notad.net/f/191622867abd45e9adce/

[bartico6]

There's a bunch of things you can do to prevent spam, but all of the solutions come at a cost to players.
You can throttle chat by imposing a limit on how often you can post messages, but bots who rapidly join and leave will get around that.
You can disable chatting for the first N seconds of your connection, but players will have to wait to say hello and they'll complain.
You can try to ban abusive IPs using some sort of blacklist, but you'll falsely flag people fairly often because dynamic IPs exist.
You can try to throttle login rates, but that'll make your server unreachable during bot attacks.

Generally speaking, there isn't much you can do without affecting legitimate players. Welcome to Terraria.