Index: kernel/utility/validator.php
===================================================================
--- kernel/utility/validator.php	(revision 15226)
+++ kernel/utility/validator.php	(working copy)
@@ -261,7 +261,7 @@
 		}
 
 		if ( !$res ) {
-			$error_params = Array (getArrayValue($params, 'min_len'), getArrayValue($params, 'max_len'), mb_strlen($val));
+			$error_params = Array ((int)getArrayValue($params, 'min_len'), (int)getArrayValue($params, 'max_len'), mb_strlen($val));
 			$this->SetError($field, 'length_out_of_range', null, $error_params);
 
 			return false;
Index: units/content/content_config.php
===================================================================
--- units/content/content_config.php	(revision 15165)
+++ units/content/content_config.php	(working copy)
@@ -65,7 +65,7 @@
 			'PageId' => Array ('type' => 'int', 'not_null' => 1, 'default' => 0),
 			'RevisionId' => Array ('type' => 'int', 'not_null' => 1, 'default' => 0),
 			'Content' => Array (
-				'type' => 'string', 'min_len' => 0, 'max_len' => 65536,
+				'type' => 'string', 'max_len' => 65536,
 				'formatter' => 'kMultiLanguage', 'using_fck' => 1,
 				'default' => ''
 			),