Identation... If your are using a non supported locale, it wont try to loaded

src/ProfaneValidator.php

@@ -82,8 +82,10 @@ class ProfaneValidator
                 $dict = include($baseDictPath.$dictionary.'.php');
                 $badwords = array_merge($badwords, $dict);
             } else {
+                if (file_exists($dictionary)) {
                     $dict = include($dictionary);
                     $badwords = array_merge($badwords, $dict);
+                }  // else nothing is merged
             }
         }