fix directory existion check #2

src/webui/explore.php

@@ -101,7 +101,11 @@ if ($config->snap->storage->local->enabled)
     $prefix = __DIR__ . '/../../' . $config->snap->storage->local->directory;
   }
 
-    foreach ((array) scandir(sprintf('%s/%s', $prefix, $filepath)) as $filename)
+  $directory = sprintf('%s/%s', $prefix, $filepath);
+
+  if (is_dir($directory))
+  {
+    foreach ((array) scandir($directory) as $filename)
     {
       if (in_array($filename, ['.', '..']))
       {
@@ -126,6 +130,7 @@ if ($config->snap->storage->local->enabled)
         ),
       ];
     }
+  }
 }
 
 /// Remote snaps