[Crayder]

For 1437, you just simply need to properly indent the code.

For the rest you are not using GetPlayerName correctly. This is the correct way to use it:

pawn Код:

public OnPlayerConnect(playerid)
{
    // Get the name of the player that connected and display a join message to other players
 
    new name[MAX_PLAYER_NAME], string[24+MAX_PLAYER_NAME];
    GetPlayerName(playerid, name, sizeof(name));
 
    format(string, sizeof(string), "%s has joined the server.", name);
    SendClientMessageToAll(0xC4C4C4FF, string);
 
    return 1;
}

Source: https://sampwiki.blast.hk/wiki/GetPlayerName