fixes

app/domain/Api/MyApi/v1/Handlers/TermsHandler.php

@@ -22,6 +22,9 @@ class TermsHandler extends Basehandler
 
     public function handle(array $params): ResponseInterface
     {
+        if (mb_strlen($_GET['string']) == 0) 
+            return new JsonApiResponse(200, ['status' => 'ok', 'terms' => []]);
+
         $translation = $this->em->getTranslationRepository()->findOneBy(['id' => $_GET['translation']]);
         $this->termFacade->setDirection($translation->direction);
         $q = $this->termFacade->findByStringFull($_GET['string'], $translation->dictionary, '', mb_strlen($_GET['string']) <= 3 ? false : true);