update

wp-content/plugins/loco-translate/tpl/admin/errors/file-isdir.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ * File is actually a directory
+ */
+$this->extend('../layout');
+
+?>
+
+    <div class="panel panel-error">
+        <h3 class="has-icon">
+            <?php esc_html_e('File is a directory','loco-translate')?> 
+        </h3>
+        <p>
+            <?php esc_html_e("This page was expecting a file, but the path is actually a directory",'loco-translate')?>:
+        </p>
+        <p>
+            <code><?php $info->e('relpath')?></code>
+        </p>
+    </div>