diff --git a/inc/anti-bot.php b/inc/anti-bot.php
index 54c6d87b..daf12c5d 100644
--- a/inc/anti-bot.php
+++ b/inc/anti-bot.php
@@ -8,19 +8,6 @@ defined('TINYBOARD') or exit;
 
 $hidden_inputs_twig = array();
 
-$logfile = "/tmp/lainchan_err.out";
-
-function print_err($s) {
-	// global $logfile;
-	// file_put_contents($logfile, $s . "\n", FILE_APPEND);
-}
-
-function print_err2($s) {
-	print_err($s);
-}
-
-print_err("\n\nSTART\n\n");
-
 class AntiBot {
 	public $salt, $inputs = array(), $index = 0;
 	
diff --git a/inc/filters.php b/inc/filters.php
index 1c7b39f1..2a66cd2a 100644
--- a/inc/filters.php
+++ b/inc/filters.php
@@ -6,8 +6,6 @@
 
 defined('TINYBOARD') or exit;
 
-require_once 'inc/anti-bot.php';
-
 class Filter {
     public $flood_check;
     private $condition;
@@ -19,7 +17,6 @@ class Filter {
     }
     
     public function match($condition, $match) {
-        print_err("Filter condition: " . $condition);
         $condition = strtolower($condition);
 
         $post = &$this->post;
@@ -220,8 +217,6 @@ function purge_flood_table() {
 function do_filters(array $post) {
     global $config;
 
-    print_err("do_filters begin");
-    
     if (!isset($config['filters']) || empty($config['filters']))
         return;
     
@@ -239,7 +234,6 @@ function do_filters(array $post) {
     }
     
     foreach ($config['filters'] as $filter_array) {
-        print_err("creating new filter, running check");
         $filter = new Filter($filter_array);
         $filter->flood_check = $flood_check;
         if ($filter->check($post)) {
diff --git a/inc/functions.php b/inc/functions.php
index 7ad23de7..3a7a8e99 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -357,7 +357,6 @@ function define_groups() {
 function create_antibot($board, $thread = null) {
 	require_once dirname(__FILE__) . '/anti-bot.php';
 
-	print_err("Create Antibot.");
 	return _create_antibot($board, $thread);
 }
 
@@ -1624,7 +1623,6 @@ function checkSpam(array $extra_salt = array()) {
 
         // Iterate through each input
         foreach ($inputs as $name => $value) {
-                print_err("->   " . $name . ' : ' . $value);
                 $_hash .= $name . '=' . $value;
         }
 
@@ -1635,7 +1633,6 @@ function checkSpam(array $extra_salt = array()) {
         $_hash = sha1($_hash . $extra_salt);
 
         if ($hash != $_hash) {
-                print_err("Hash mismatch");
                 return true;
         }
 
diff --git a/inc/mod/pages.php b/inc/mod/pages.php
index a15ed1a2..1b68fb2c 100644
--- a/inc/mod/pages.php
+++ b/inc/mod/pages.php
@@ -6,8 +6,6 @@
 
 defined('TINYBOARD') or exit;
 
-require_once 'inc/anti-bot.php'; // DELETE ME THIS IS FOR print_err function only!
-
 function mod_page($title, $template, $args, $subtitle = false) {
     global $config, $mod;
 
@@ -2688,7 +2686,6 @@ function mod_new_pm($username) {
 
 function mod_rebuild() {
     global $config, $twig;
-    print_err("mod_rebuild");
 
     if (!hasPermission($config['mod']['rebuild']))
         error($config['error']['noaccess']);
@@ -2713,9 +2710,7 @@ function mod_rebuild() {
 
         if (isset($_POST['rebuild_themes'])) {
             $log[] = 'Regenerating theme files';
-            print_err("mod_rebuild calling rebuildThemes");
             rebuildThemes('all');
-            print_err("mod_rebuild calling rebuildThemes ok");
         }
 
         if (isset($_POST['rebuild_javascript'])) {
diff --git a/install.php b/install.php
index 3eda423b..72994bfa 100644
--- a/install.php
+++ b/install.php
@@ -24,27 +24,17 @@ $page = array(
 $config['minify_html'] = false;
 
 function checkMd5Exec(bool $can_exec) {
-	print_err2("checkMd5Exec");
-	print_err2($can_exec);
 	$shell_out = shell_exec("pwd");
-	print_err2("shell out: " . $shell_out);
 	$shell_out = shell_exec('echo "vichan" | md5sum');
-	print_err2("shell out: " . $shell_out);
 	$shell_ok = $shell_out == "141225c362da02b5c359c45b665168de  -\n";
-	print_err2("shell ok: " . strval($shell_ok));
 	$result = $can_exec && $shell_ok;
-	print_err2($result);
 	return $result;
 }
 
 function checkGifsicle() {
-	print_err2("checkGifsicle");
 	$shell_out = shell_exec('echo $PATH');
-	print_err2("shell out: " . $shell_out);
 	$shell_out = shell_exec('gifsicle --help');
-	print_err2("shell out: " . $shell_out);
 	$shell_out = shell_exec('which gifsicle');
-	print_err2("shell out (which gifsicle): " . $shell_out);
 	return $shell_out;
 }
 
@@ -672,7 +662,6 @@ if ($step == 0) {
 	
 	echo Element('page.html', $page);
 } elseif ($step == 1) {
-	print_err2("Hello World install.php");
 	$page['title'] = 'Pre-installation test';
 	
 	$can_exec = true;
@@ -689,8 +678,6 @@ if ($step == 0) {
 		$version = explode('.', PHP_VERSION);
 		define('PHP_VERSION_ID', ($version[0] * 10000 + $version[1] * 100 + $version[2]));
 	}
-
-	print_err2("Can exec: " . strval($can_exec));
 	
 	// Required extensions
 	$extensions = array(