diff --git a/htdocs/comm/action/class/actioncomm.class.php b/htdocs/comm/action/class/actioncomm.class.php
index f4b7f1b2bfb..a133e3cc314 100644
--- a/htdocs/comm/action/class/actioncomm.class.php
+++ b/htdocs/comm/action/class/actioncomm.class.php
@@ -1317,7 +1317,7 @@ class ActionComm extends CommonObject
 		dol_syslog(get_class()."::getActions", LOG_DEBUG);
 
 		require_once DOL_DOCUMENT_ROOT . '/core/class/hookmanager.class.php';
-		$hookmanager = new HookManager($db);
+		$hookmanager = new HookManager($this->db);
 		// Initialize technical object to manage hooks of page. Note that conf->hooks_modules contains array of hook context
 		$hookmanager->initHooks(array('agendadao'));
 
diff --git a/htdocs/core/class/html.formticket.class.php b/htdocs/core/class/html.formticket.class.php
index 0e5e6ff9e7c..214413b8f1b 100644
--- a/htdocs/core/class/html.formticket.class.php
+++ b/htdocs/core/class/html.formticket.class.php
@@ -1270,7 +1270,7 @@ class FormTicket
 		// Define output language
 		$outputlangs = $langs;
 		$newlang = '';
-		if (getDolGlobalInt('MAIN_MULTILANGS') && empty($newlang)) {
+		if (getDolGlobalInt('MAIN_MULTILANGS') && empty($newlang) && isset($this->param['langsmodels'])) {
 			$newlang = $this->param['langsmodels'];
 		}
 		if (!empty($newlang)) {
@@ -1281,7 +1281,7 @@ class FormTicket
 
 		// Get message template for $this->param["models"] into c_email_templates
 		$arraydefaultmessage = -1;
-		if ($this->param['models'] != 'none') {
+		if (isset($this->param['models']) && $this->param['models'] != 'none') {
 			$model_id = 0;
 			if (array_key_exists('models_id', $this->param)) {
 				$model_id = (int) $this->param["models_id"];
@@ -1323,7 +1323,7 @@ class FormTicket
 		// Define output language
 		$outputlangs = $langs;
 		$newlang = '';
-		if (getDolGlobalInt('MAIN_MULTILANGS') && empty($newlang)) {
+		if (getDolGlobalInt('MAIN_MULTILANGS') && empty($newlang) && isset($this->param['langsmodels'])) {
 			$newlang = $this->param['langsmodels'];
 		}
 		if (!empty($newlang)) {
@@ -1380,7 +1380,12 @@ class FormTicket
 		print '<input type="hidden" name="action" value="'.$this->action.'">';
 		print '<input type="hidden" name="actionbis" value="add_message">';
 		print '<input type="hidden" name="backtopage" value="'.$this->backtopage.'">';
-		print '<input type="hidden" name="trackid" value="'.$this->trackid.'">';
+		if (!empty($this->trackid)) {
+			print '<input type="hidden" name="trackid" value="'.$this->trackid.'">';
+		} else {
+			print '<input type="hidden" name="trackid" value="'.(empty($this->track_id) ? '' : $this->track_id).'">';
+			$keytoavoidconflict = empty($this->track_id) ? '' : '-'.$this->track_id; // track_id instead of trackid
+		}
 		foreach ($this->param as $key => $value) {
 			print '<input type="hidden" name="'.$key.'" value="'.$value.'">';
 		}
@@ -1392,7 +1397,7 @@ class FormTicket
 			$arraydefaultmessage = $formmail->getEMailTemplate($this->db, $this->param["models"], $user, $outputlangs, $model_id);
 		}
 
-		$result = $formmail->fetchAllEMailTemplate($this->param["models"], $user, $outputlangs);
+		$result = $formmail->fetchAllEMailTemplate(!empty($this->param["models"]) ? $this->param["models"] : "", $user, $outputlangs);
 		if ($result < 0) {
 			setEventMessages($this->error, $this->errors, 'errors');
 		}
@@ -1404,7 +1409,7 @@ class FormTicket
 		print '<table class="border" width="'.$width.'">';
 
 		// External users can't send message email
-		if ($user->rights->ticket->write && !$user->socid) {
+		if ($user->hasRight("ticket", "write") && !$user->socid) {
 			$ticketstat = new Ticket($this->db);
 			$res = $ticketstat->fetch('', '', $this->track_id);
 
@@ -1556,7 +1561,7 @@ class FormTicket
 		// Deal with format differences between message and signature (text / HTML)
 		if (dol_textishtml($defaultmessage) && !dol_textishtml($this->substit['__USER_SIGNATURE__'])) {
 			$this->substit['__USER_SIGNATURE__'] = dol_nl2br($this->substit['__USER_SIGNATURE__']);
-		} elseif (!dol_textishtml($defaultmessage) && dol_textishtml($this->substit['__USER_SIGNATURE__'])) {
+		} elseif (!dol_textishtml($defaultmessage) && isset($this->substit['__USER_SIGNATURE__']) && dol_textishtml($this->substit['__USER_SIGNATURE__'])) {
 			$defaultmessage = dol_nl2br($defaultmessage);
 		}
 		if (GETPOSTISSET("message") && !GETPOST('modelselected')) {
@@ -1569,7 +1574,7 @@ class FormTicket
 		}
 
 		print '<tr><td colspan="2"><label for="message"><span class="fieldrequired">'.$langs->trans("Message").'</span>';
-		if ($user->rights->ticket->write && !$user->socid) {
+		if ($user->hasRight("ticket", "write") && !$user->socid) {
 			$texttooltip = $langs->trans("TicketMessageHelp");
 			if (getDolGlobalString('TICKET_MESSAGE_MAIL_INTRO') || getDolGlobalString('TICKET_MESSAGE_MAIL_SIGNATURE')) {
 				$texttooltip .= '<br><br>'.$langs->trans("ForEmailMessageWillBeCompletedWith").'...';
diff --git a/htdocs/public/ticket/create_ticket.php b/htdocs/public/ticket/create_ticket.php
index 50f5a8776c2..862f50d88a9 100644
--- a/htdocs/public/ticket/create_ticket.php
+++ b/htdocs/public/ticket/create_ticket.php
@@ -310,11 +310,11 @@ if (empty($reshook)) {
 				}
 			}
 
-			if (is_array($searched_companies)) {
+			if (!empty($searched_companies) && is_array($searched_companies)) {
 				$object->fk_soc = $searched_companies[0]->id;
 			}
 
-			if (is_array($contacts) and count($contacts) > 0) {
+			if (is_array($contacts) && count($contacts) > 0) {
 				$object->fk_soc = $contacts[0]->socid;
 				$usertoassign = $contacts[0]->id;
 			}
@@ -329,7 +329,7 @@ if (empty($reshook)) {
 			if ($nb_post_max > 0 && $nb_post_ip >= $nb_post_max) {
 				$error++;
 				$errors = array($langs->trans("AlreadyTooMuchPostOnThisIPAdress"));
-				array_push($object->errors, array($langs->trans("AlreadyTooMuchPostOnThisIPAdress")));
+				array_push($object->errors, $langs->trans("AlreadyTooMuchPostOnThisIPAdress"));
 				$action = 'create_ticket';
 			}
 
diff --git a/htdocs/public/ticket/list.php b/htdocs/public/ticket/list.php
index 3fe6253b879..c929c2486bd 100644
--- a/htdocs/public/ticket/list.php
+++ b/htdocs/public/ticket/list.php
@@ -62,6 +62,8 @@ $cancel = GETPOST('cancel', 'aZ09');
 
 $track_id = GETPOST('track_id', 'alpha');
 $email = strtolower(GETPOST('email', 'alpha'));
+$suffix = "";
+$moreforfilter = "";
 
 if (GETPOST('btn_view_ticket_list')) {
 	unset($_SESSION['track_id_customer']);
@@ -364,7 +366,7 @@ if ($action == "view_ticketlist") {
 		$sql .= " LEFT JOIN ".MAIN_DB_PREFIX."element_contact as ec ON ec.element_id = t.rowid";
 		$sql .= " LEFT JOIN ".MAIN_DB_PREFIX."c_type_contact as tc ON ec.fk_c_type_contact = tc.rowid";
 		$sql .= " LEFT JOIN ".MAIN_DB_PREFIX."socpeople sp ON ec.fk_socpeople = sp.rowid";
-		if (is_array($extrafields->attributes[$object->table_element]['label']) && count($extrafields->attributes[$object->table_element]['label'])) {
+		if (isset($extrafields->attributes[$object->table_element]['label']) && is_array($extrafields->attributes[$object->table_element]['label']) && count($extrafields->attributes[$object->table_element]['label'])) {
 			$sql .= " LEFT JOIN ".MAIN_DB_PREFIX."ticket_extrafields as ef on (t.rowid = ef.fk_object)";
 		}
 		$sql .= " WHERE t.entity IN (".getEntity('ticket').")";
@@ -736,7 +738,7 @@ if ($action == "view_ticketlist") {
 	print '</p>';
 
 	print '<p><label for="email" style="display: inline-block; width: 30%; "><span class="fieldrequired">'.$langs->trans('Email').'</span></label>';
-	print '<input size="30" id="email" name="email" value="'.(GETPOST('email', 'alpha') ? GETPOST('email', 'alpha') : $_SESSION['customer_email']).'" />';
+	print '<input size="30" id="email" name="email" value="'.(GETPOST('email', 'alpha') ? GETPOST('email', 'alpha') : (!empty($_SESSION['customer_email']) ? $_SESSION['customer_email'] : "")).'" />';
 	print '</p>';
 
 	print '<p style="text-align: center; margin-top: 1.5em;">';
diff --git a/htdocs/public/ticket/view.php b/htdocs/public/ticket/view.php
index bab3c501ca3..edf2504fb0c 100644
--- a/htdocs/public/ticket/view.php
+++ b/htdocs/public/ticket/view.php
@@ -63,6 +63,7 @@ $cancel = GETPOST('cancel', 'aZ09');
 
 $track_id = GETPOST('track_id', 'alpha');
 $email    = GETPOST('email', 'email');
+$suffix = "";
 
 if (GETPOST('btn_view_ticket')) {
 	unset($_SESSION['email_customer']);
@@ -205,7 +206,7 @@ if ($action == "view_ticket" || $action == "presend" || $action == "close" || $a
 $triggersendname = 'TICKET_SENTBYMAIL';
 $paramname = 'id';
 $autocopy = 'MAIN_MAIL_AUTOCOPY_TICKET_TO'; // used to know the automatic BCC to add
-$trackid = 'tic'.$object->id;
+if (!empty($object->id)) $trackid = 'tic'.$object->id;
 include DOL_DOCUMENT_ROOT.'/core/actions_sendmails.inc.php';
 
 
@@ -401,7 +402,7 @@ if ($action == "view_ticket" || $action == "presend" || $action == "close" || $a
 	print '</p>';
 
 	print '<p><label for="email" style="display: inline-block; width: 30%; "><span class="fieldrequired">'.$langs->trans('Email').'</span></label>';
-	print '<input size="30" id="email" name="email" value="'.(GETPOST('email', 'alpha') ? GETPOST('email', 'alpha') : $_SESSION['customer_email']).'" />';
+	print '<input size="30" id="email" name="email" value="'.(GETPOST('email', 'alpha') ? GETPOST('email', 'alpha') : (!empty($_SESSION['customer_email']) ? $_SESSION['customer_email'] : "")).'" />';
 	print '</p>';
 
 	print '<p style="text-align: center; margin-top: 1.5em;">';
diff --git a/htdocs/ticket/class/actions_ticket.class.php b/htdocs/ticket/class/actions_ticket.class.php
index 133fb72e7f2..c5e267fddf6 100644
--- a/htdocs/ticket/class/actions_ticket.class.php
+++ b/htdocs/ticket/class/actions_ticket.class.php
@@ -199,7 +199,7 @@ class ActionsTicket
 		print '<tr class="liste_titre trforfield"><td class="nowrap titlefield">';
 		print $langs->trans("InitialMessage");
 		print '</td><td>';
-		if ($user->rights->ticket->manage) {
+		if ($user->hasRight("ticket", "manage")) {
 			print '<a class="editfielda" href="'.$_SERVER['PHP_SELF'].'?action=edit_message_init&token='.newToken().'&track_id='.$object->track_id.'">'.img_edit($langs->trans('Modify')).'</a>';
 		}
 		print '</td></tr>';
diff --git a/htdocs/ticket/class/ticket.class.php b/htdocs/ticket/class/ticket.class.php
index 3a6adeb6c20..6c195c16704 100644
--- a/htdocs/ticket/class/ticket.class.php
+++ b/htdocs/ticket/class/ticket.class.php
@@ -1666,7 +1666,7 @@ class Ticket extends CommonObject
 	 */
 	public function loadCacheMsgsTicket()
 	{
-		if (is_array($this->cache_msgs_ticket) && count($this->cache_msgs_ticket)) {
+		if (!empty($this->cache_msgs_ticket) && is_array($this->cache_msgs_ticket) && count($this->cache_msgs_ticket)) {
 			return 0;
 		}