diff --git a/www/admin/class_test.php b/www/admin/class_test.php
index 3a95e779..9f2ee147 100644
--- a/www/admin/class_test.php
+++ b/www/admin/class_test.php
@@ -32,7 +32,7 @@ ob_end_flush();
 
 // set + check edit access id
 $edit_access_id = 3;
-if (array_key_exists('unit', $login->acl)) {
+if (isset($login) && is_object($login) && isset($login->acl['unit'])) {
 	print "ACL UNIT: ".print_r(array_keys($login->acl['unit']), 1)."<br>";
 	print "ACCESS CHECK: ".$login->loginCheckEditAccess($edit_access_id)."<br>";
 	if ($login->loginCheckEditAccess($edit_access_id)) {
@@ -68,14 +68,16 @@ print "CALLER BACKTRACE: ".$basic->getCallerMethod()."<br>";
 $basic->debug('SOME MARK', 'Some error output');
 
 print "EDIT ACCESS ID: ".$basic->edit_access_id."<br>";
-//	print "ACL: <br>".$basic->print_ar($login->acl)."<br>";
-$basic->debug('ACL', "ACL: ".$basic->printAr($login->acl));
-//	print "DEFAULT ACL: <br>".$basic->print_ar($login->default_acl_list)."<br>";
-//	print "DEFAULT ACL: <br>".$basic->print_ar($login->default_acl_list)."<br>";
-//	$result = array_flip(array_filter(array_flip($login->default_acl_list), function ($key) { if (is_numeric($key)) return $key; }));
-//	print "DEFAULT ACL: <br>".$basic->print_ar($result)."<br>";
-// DEPRICATED CALL
-//	$basic->adbSetACL($login->acl);
+if (isset($login)) {
+	//	print "ACL: <br>".$basic->print_ar($login->acl)."<br>";
+	$basic->debug('ACL', "ACL: ".$basic->printAr($login->acl));
+	//	print "DEFAULT ACL: <br>".$basic->print_ar($login->default_acl_list)."<br>";
+	//	print "DEFAULT ACL: <br>".$basic->print_ar($login->default_acl_list)."<br>";
+	//	$result = array_flip(array_filter(array_flip($login->default_acl_list), function ($key) { if (is_numeric($key)) return $key; }));
+	//	print "DEFAULT ACL: <br>".$basic->print_ar($result)."<br>";
+	// DEPRICATED CALL
+	//	$basic->adbSetACL($login->acl);
+}
 
 // DB client encoding
 print "DB Client encoding: ".$basic->dbGetEncoding()."<br>";
@@ -210,7 +212,7 @@ print "COMPARE DATE: ".$basic->compareDate($date_1, $date_2)."<br>";
 // array re
 
 // print error messages
-print $login->printErrorMsg();
+// print $login->printErrorMsg();
 print $basic->printErrorMsg();
 
 print "</body></html>";
diff --git a/www/admin/error_test.php b/www/admin/error_test.php
index 5abf6593..2a57a571 100644
--- a/www/admin/error_test.php
+++ b/www/admin/error_test.php
@@ -10,7 +10,7 @@ if ($DEBUG_ALL) {
 }
 
 // sample config
-require("config.inc");
+require 'config.php';
 echo "FILE: ".BASE.LIB."Error.Handling.inc<br>";
 require(BASE.LIB."Error.Handling.inc");
 
diff --git a/www/admin/l10n_test.php b/www/admin/l10n_test.php
new file mode 100755
index 00000000..7368d003
--- /dev/null
+++ b/www/admin/l10n_test.php
@@ -0,0 +1,17 @@
+<?php
+
+// debug for L10n issues in php 7.3
+
+// namespace test
+ob_start();
+
+$lang = 'en_utf8';
+
+// admin class tests
+require 'config.php';
+$l = new CoreLibs\Language\L10n($lang);
+
+echo "OK<br>";
+
+ob_end_flush();
+// __END__
diff --git a/www/lib/CoreLibs/ACL/Login.inc b/www/lib/CoreLibs/ACL/Login.inc
index 1804d9d8..9f614e17 100644
--- a/www/lib/CoreLibs/ACL/Login.inc
+++ b/www/lib/CoreLibs/ACL/Login.inc
@@ -72,6 +72,11 @@ class Login extends \CoreLibs\DB\IO
 	private $password_change_ok = false; // password change was successful
 	private $password_forgot = false; // can we reset password and mail to user with new password set screen
 	private $password_forgot_ok = false; // password forgot mail send ok
+	private $change_password;
+	private $pw_username;
+	private $pw_old_password;
+	private $pw_new_password;
+	private $pw_new_password_confirm;
 	private $pw_change_deny_users = array (); // array of users for which the password change is forbidden
 
 	// if we have password change we need to define some rules
@@ -179,12 +184,12 @@ class Login extends \CoreLibs\DB\IO
 			$_POST['pw_new_password_confirm'] = '';
 		}
 		// pass on vars to Object vars
-		$this->login = $_POST["login_login"];
-		$this->username = $_POST["login_username"];
-		$this->password = $_POST["login_password"];
-		$this->logout = $_POST["login_logout"];
+		$this->login = $_POST['login_login'];
+		$this->username = $_POST['login_username'];
+		$this->password = $_POST['login_password'];
+		$this->logout = $_POST['login_logout'];
 		// password change vars
-		$this->change_password = $_POST["change_password"];
+		$this->change_password = $_POST['change_password'];
 		$this->pw_username = $_POST['pw_username'];
 		$this->pw_old_password = $_POST['pw_old_password'];
 		$this->pw_new_password = $_POST['pw_new_password'];
diff --git a/www/lib/CoreLibs/DB/IO.inc b/www/lib/CoreLibs/DB/IO.inc
index 81ccd06d..26dca161 100644
--- a/www/lib/CoreLibs/DB/IO.inc
+++ b/www/lib/CoreLibs/DB/IO.inc
@@ -2117,3 +2117,5 @@ class IO extends \CoreLibs\Basic
 		return $this->dbSqlEscape($value, $kbn);
 	}
 } // end if db class
+
+// __END__
diff --git a/www/lib/CoreLibs/Language/Core/GetTextReader.inc b/www/lib/CoreLibs/Language/Core/GetTextReader.inc
index f0f77eaa..beca2118 100755
--- a/www/lib/CoreLibs/Language/Core/GetTextReader.inc
+++ b/www/lib/CoreLibs/Language/Core/GetTextReader.inc
@@ -457,4 +457,4 @@ class GetTextReader
 	}
 }
 
-# __END__
\ No newline at end of file
+# __END__
diff --git a/www/lib/CoreLibs/Language/L10n.inc b/www/lib/CoreLibs/Language/L10n.inc
index 43061be8..6475a49c 100644
--- a/www/lib/CoreLibs/Language/L10n.inc
+++ b/www/lib/CoreLibs/Language/L10n.inc
@@ -57,7 +57,6 @@ class L10n extends \CoreLibs\Basic
 		} else {
 			$this->input = false;
 		}
-
 		$this->l10n = new GetTextReader($this->input);
 	}
 
@@ -114,3 +113,5 @@ class L10n extends \CoreLibs\Basic
 		return $this->mofile;
 	}
 }
+
+// __END__