Another bug fix

SE/se-lib/VAT.php

@@ -166,7 +166,7 @@ Class VAT {
 		$this->dom->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8'));
 		$this->message = array_map("trim", array_values(array_diff(explode("|", $this->dom->getElementById("caption2_b-3")->textContent), [''])));
 		if (!$this->message) throw new Exception("Błąd danych ze strony Ministerstwa Finansów");
-		if (in_array($this->message[0], $this->messages)) return $this->messages[$this->message[0]]['active'];
+		if (isset($this->messages[$this->message[0]])) return $this->messages[$this->message[0]]['active'];
 		else throw new Exception("Nieznany rezultat");
 	}