diff --git a/actions.php b/actions.php
index 6742806af..b69535026 100755
--- a/actions.php
+++ b/actions.php
@@ -1,4 +1,21 @@
.
+ */
include_once __DIR__.'/core.php';
diff --git a/add.php b/add.php
index d1a4dcceb..7535b9eb6 100755
--- a/add.php
+++ b/add.php
@@ -1,4 +1,21 @@
.
+ */
include_once __DIR__.'/core.php';
diff --git a/ajax.php b/ajax.php
index 0bc8fa6e4..02aeac754 100755
--- a/ajax.php
+++ b/ajax.php
@@ -1,4 +1,21 @@
.
+ */
include_once __DIR__.'/core.php';
diff --git a/ajax_complete.php b/ajax_complete.php
index d17e7a6f0..d2a6acde7 100755
--- a/ajax_complete.php
+++ b/ajax_complete.php
@@ -1,4 +1,21 @@
.
+ */
include_once __DIR__.'/core.php';
diff --git a/ajax_dataload.php b/ajax_dataload.php
index 2e6d0ddb5..3d8a45e04 100755
--- a/ajax_dataload.php
+++ b/ajax_dataload.php
@@ -1,4 +1,21 @@
.
+ */
include_once __DIR__.'/core.php';
diff --git a/ajax_search.php b/ajax_search.php
index 2ea553d61..6d51ab56f 100755
--- a/ajax_search.php
+++ b/ajax_search.php
@@ -1,4 +1,21 @@
.
+ */
include_once __DIR__.'/core.php';
diff --git a/ajax_select.php b/ajax_select.php
index ec73fca60..166fc9e29 100755
--- a/ajax_select.php
+++ b/ajax_select.php
@@ -1,4 +1,21 @@
.
+ */
include_once __DIR__.'/core.php';
diff --git a/api/index.php b/api/index.php
index 8b8a4dcbe..241ed1546 100755
--- a/api/index.php
+++ b/api/index.php
@@ -1,4 +1,21 @@
.
+ */
use API\Response;
diff --git a/assets/src/css/datatables.css b/assets/src/css/datatables.css
index 7f763ddca..83d624f65 100755
--- a/assets/src/css/datatables.css
+++ b/assets/src/css/datatables.css
@@ -1,3 +1,21 @@
+/*
+ * OpenSTAManager: il software gestionale open source per l'assistenza tecnica e la fatturazione
+ * Copyright (C) DevCode s.n.c.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see