diff --git a/adminer/include/plugins.inc.php b/adminer/include/plugins.inc.php
index d1e9fcb5..2a6eca6a 100644
--- a/adminer/include/plugins.inc.php
+++ b/adminer/include/plugins.inc.php
@@ -2,8 +2,8 @@
 namespace Adminer;
 
 class Plugins extends Adminer {
-	public $plugins; ///< @var protected(set)
-	public $error = ''; ///< @var protected(set)
+	public $plugins; ///< @var protected(set) array
+	public $error = ''; ///< @var protected(set) string HTML
 
 	/** Register plugins
 	* @param array object instances or null to autoload plugins from adminer-plugins/
@@ -17,6 +17,7 @@ class Plugins extends Adminer {
 					$include = include_once "./$filename";
 				}
 			}
+			$help = " href='https://www.adminer.org/plugins/#use'" . target_blank();
 			if (file_exists("$basename.php")) {
 				$include = include_once "./$basename.php"; // example: return array(new AdminerLoginOtp($secret))
 				if (is_array($include)) {
@@ -24,7 +25,7 @@ class Plugins extends Adminer {
 						$plugins[get_class($plugin)] = $plugin;
 					}
 				} else {
-					$this->error .= lang('<b>%s</b> must return an array.', "$basename.php") . "<br>";
+					$this->error .= lang('%s must <a%s>return an array</a>.', "<b>$basename.php</b>", $help) . "<br>";
 				}
 			}
 			foreach (get_declared_classes() as $class) {
@@ -32,7 +33,7 @@ class Plugins extends Adminer {
 					$reflection = new \ReflectionClass($class);
 					$constructor = $reflection->getConstructor();
 					if ($constructor && $constructor->getNumberOfRequiredParameters()) {
-						$this->error .= lang('Configure <b>%s</b> in <b>%s</b>.', $class, "$basename.php") . "<br>";
+						$this->error .= lang('<a%s>Configure</a> %s in %s.', $help, "<b>$class</b>", "<b>$basename.php</b>") . "<br>";
 					} else {
 						$plugins[$class] = new $class;
 					}
diff --git a/adminer/lang/cs.inc.php b/adminer/lang/cs.inc.php
index 6ae4cc96..2b8d4c4d 100644
--- a/adminer/lang/cs.inc.php
+++ b/adminer/lang/cs.inc.php
@@ -14,8 +14,8 @@ $translations = array(
 	'Logout successful.' => 'Odhlášení proběhlo v pořádku.',
 	'Thanks for using Adminer, consider <a href="https://www.adminer.org/en/donation/">donating</a>.' => 'Díky za použití Admineru, <a href="https://www.adminer.org/cs/donation/">přispějte</a> na vývoj.',
 	'Loaded plugins' => 'Nahrané pluginy',
-	'<b>%s</b> must return an array.' => '<b>%s</b> musí vracet pole.',
-	'Configure <b>%s</b> in <b>%s</b>.' => 'Nakonfigurujte <b>%s</b> v <b>%s</b>.',
+	'%s must <a%s>return an array</a>.' => '%s musí <a%s>vracet pole</a>.',
+	'<a%s>Configure</a> %s in %s.' => '<a%s>Nakonfigurujte</a> %s v %s.',
 	'Invalid credentials.' => 'Neplatné přihlašovací údaje.',
 	'There is a space in the input password which might be the cause.' => 'Problém může být, že je v zadaném hesle mezera.',
 	'Adminer does not support accessing a database without a password, <a href="https://www.adminer.org/en/password/"%s>more information</a>.' => 'Adminer nepodporuje přístup k databázi bez hesla, <a href="https://www.adminer.org/cs/password/"%s>více informací</a>.',
diff --git a/adminer/lang/pl.inc.php b/adminer/lang/pl.inc.php
index aeaa263d..cacdab35 100644
--- a/adminer/lang/pl.inc.php
+++ b/adminer/lang/pl.inc.php
@@ -14,8 +14,8 @@ $translations = array(
 	'Logout successful.' => 'Wylogowano pomyślnie.',
 	'Thanks for using Adminer, consider <a href="https://www.adminer.org/en/donation/">donating</a>.' => 'Dziękujemy za używanie Adminera, rozważ <a href="https://www.adminer.org/pl/donation/">dotację</a>.',
 	'Loaded plugins' => 'Wczytane wtyczki',
-	'<b>%s</b> must return an array.' => '<b>%s</b> musi zwrócić tablicę.',
-	'Configure <b>%s</b> in <b>%s</b>.' => 'Skonfiguruj <b>%s</b> w <b>%s</b>.',
+	'%s must <a%s>return an array</a>.' => '%s musi <a%s>zwrócić tablicę</a>.',
+	'<a%s>Configure</a> %s in %s.' => '<a%s>Skonfiguruj</a> %s w %s.',
 	'Invalid credentials.' => 'Nieprawidłowe dane logowania.',
 	'There is a space in the input password which might be the cause.' => 'W haśle wejściowym znajduje się spacja, która może być przyczyną.',
 	'Adminer does not support accessing a database without a password, <a href="https://www.adminer.org/en/password/"%s>more information</a>.' => 'Adminer nie obsługuje dostępu do bazy danych bez hasła, <a href="https://www.adminer.org/pl/password/"%s>więcej informacji</a>.',
diff --git a/adminer/lang/xx.inc.php b/adminer/lang/xx.inc.php
index d0a4b5b5..63c68ae2 100644
--- a/adminer/lang/xx.inc.php
+++ b/adminer/lang/xx.inc.php
@@ -14,8 +14,8 @@ $translations = array(
 	'Logout successful.' => 'Xx.',
 	'Thanks for using Adminer, consider <a href="https://www.adminer.org/en/donation/">donating</a>.' => 'Xx <a href="https://www.adminer.org/en/donation/">xx</a>.',
 	'Loaded plugins' => 'Xx',
-	'<b>%s</b> must return an array.' => '<b>%s</b> xx.',
-	'Configure <b>%s</b> in <b>%s</b>.' => 'Xx <b>%s</b> xx <b>%s</b>.',
+	'%s must <a%s>return an array</a>.' => '%s xx <a%s>xx</a>.',
+	'<a%s>Configure</a> %s in %s.' => '<a%s>Xx</a> %s xx %s.',
 	'Invalid credentials.' => 'Xx.',
 	'There is a space in the input password which might be the cause.' => 'Xx.',
 	'Adminer does not support accessing a database without a password, <a href="https://www.adminer.org/en/password/"%s>more information</a>.' => 'Xx, <a href="https://www.adminer.org/en/password/"%s>xx</a>.',