diff --git a/module/api/lang/de.php b/module/api/lang/de.php
index efc65af19e..94f35208ae 100644
--- a/module/api/lang/de.php
+++ b/module/api/lang/de.php
@@ -215,3 +215,4 @@ $lang->api_lib_release->version = 'Version';
 $lang->api->error = new stdclass();
 $lang->api->error->onlySelect = 'Das SQL Interface erlaubt nur SELECT Abfragen.';
 $lang->api->error->disabled   = 'For security reasons, this feature is disabled. You can go to the config directory and modify the configuration item %s to open this function.';
+$lang->api->error->notInput   = 'Debugging is not supported temporarily due to field parameter type restrictions';
diff --git a/module/api/lang/en.php b/module/api/lang/en.php
index 9ade64dd07..75daf52e85 100644
--- a/module/api/lang/en.php
+++ b/module/api/lang/en.php
@@ -215,3 +215,4 @@ $lang->api_lib_release->version = 'Version';
 $lang->api->error = new stdclass();
 $lang->api->error->onlySelect = 'SQL API only allows SELECT query.';
 $lang->api->error->disabled   = 'For security reasons, this feature is disabled. Go to the config directory and modify the configuration item %s to enable it.';
+$lang->api->error->notInput   = 'Debugging is not supported temporarily due to field parameter type restrictions';
diff --git a/module/api/lang/fr.php b/module/api/lang/fr.php
index 140be832f2..52e2fdfa2f 100644
--- a/module/api/lang/fr.php
+++ b/module/api/lang/fr.php
@@ -215,3 +215,4 @@ $lang->api_lib_release->version = 'Version';
 $lang->api->error = new stdclass();
 $lang->api->error->onlySelect = 'Cette interface SQL ne supporte que les requêtes SELECT.';
 $lang->api->error->disabled   = 'For security reasons, this feature is disabled. You can go to the config directory and modify the configuration item %s to open this function.';
+$lang->api->error->notInput   = 'Debugging is not supported temporarily due to field parameter type restrictions';
diff --git a/module/api/lang/zh-cn.php b/module/api/lang/zh-cn.php
index 204f2906a8..7fe50f7740 100755
--- a/module/api/lang/zh-cn.php
+++ b/module/api/lang/zh-cn.php
@@ -215,3 +215,4 @@ $lang->api_lib_release->version = '版本';
 $lang->api->error             = new stdclass();
 $lang->api->error->onlySelect = 'SQL查询接口只允许SELECT查询';
 $lang->api->error->disabled   = '因为安全原因，该功能被禁用。可以到config目录，修改配置项 %s，打开此功能。';
+$lang->api->error->notInput   = '因字段参数类型限制，暂不支持调试';
diff --git a/module/api/view/debug.html.php b/module/api/view/debug.html.php
index 777335d948..27c4361f28 100644
--- a/module/api/view/debug.html.php
+++ b/module/api/view/debug.html.php
@@ -20,7 +20,11 @@
         <?php foreach($method->parameters as $param):?>
         <tr>
           <th class='c-name'><?php echo $param->name?></th>
+          <?php if(!$param->isOptional() or is_string($param->getDefaultValue())):?>
           <td><?php echo html::input("$param->name", $param->isOptional() ? $param->getDefaultValue() : '', "class='form-control'")?></td>
+          <?php else:?>
+          <td><?php echo $lang->api->error->notInput . html::hidden("$param->name", '', "class='form-control'")?></td>
+          <?php endif;?>
         </tr>
         <?php endforeach;?>
         <tr>