Don't require the module if it isn't enabled.

lib/database.js

@@ -1,15 +1,15 @@
+exports.setup = function() {
 	var sqlite = require('sqlite3');
 
 	var db = new sqlite.Database('database.sql');
 
+	db.serialize(function() {
+		db.run('CREATE TABLE IF NOT EXISTS pings (id INT AUTO INCREMENT PRIMARY KEY, timestamp BIGINT NOT NULL, ip TINYTEXT, player MEDIUMINT)');
+	});
+
 	exports.log = function(ip, timestamp, playerCount) {
 		var insertStatement = db.prepare('INSERT INTO pings (timestamp, ip, player) VALUES (?, ?, ?)');
 
 		insertStatement.run(timestamp, ip, playerCount);
 	};
-
-exports.setup = function(fileName) {
-	db.serialize(function() {
-		db.run('CREATE TABLE IF NOT EXISTS pings (id INT AUTO INCREMENT PRIMARY KEY, timestamp BIGINT NOT NULL, ip TINYTEXT, player MEDIUMINT)');
-	});
 };