diff -r 4a0fc5c5f420 -r 46b4d1971fee server/src/app/Http/Controllers/Api/LexvoController.php
--- a/server/src/app/Http/Controllers/Api/LexvoController.php	Sat Nov 19 21:29:56 2016 +0100
+++ b/server/src/app/Http/Controllers/Api/LexvoController.php	Tue Nov 22 13:53:52 2016 +0100
@@ -36,8 +36,9 @@
                 }
             }
             $lexvosNames = $this->lexvoResolver->getNames($ids);
-            $corpusNames = array_reduce($corpusIds, function($res,$cid) {
-                $cNode = CorpusFilterManager::getLanguageNode($cid);
+            $filterManager = new CorpusFilterManager();
+            $corpusNames = array_reduce($corpusIds, function($res,$cid) use ($filterManager) {
+                $cNode = $filterManager->getLanguageNode($cid);
                 if(is_null($cNode)) {
                     $res[$cid] = null;
                 } else {