diff --git a/TemplateObject.php b/TemplateObject.php
index 68d93b2..1befde5 100644
--- a/TemplateObject.php
+++ b/TemplateObject.php
@@ -348,11 +348,11 @@ function setVarArray($arr)
 				    //TODO: remove set block in next release
                     //see https://github.com/Aleksandr-ru/TemplateObject/commit/4520ffffaa0864bd8503813b1f65a5e9630a2a95
 					if($b = $this->setBlock($key)) {
-                        if(self::array_has_string_keys($vv)) {
+                        if(is_array($vv) && self::array_has_string_keys($vv)) {
                             $b->setVarArray($vv);
                         }
                         else {
-                            $this->debug and trigger_error("Numeric array given for variables in block '$key'", E_USER_WARNING);
+                            $this->debug and trigger_error("Incorrect variables array for block '$key'", E_USER_WARNING);
                         }
                     }
 				}