I am starting all over with my shop so I installed OC 2.1.0.2.
I want to use Sisow (again) but after copying the files to the admin and catalog map and installing the module I get this

Notice: Error: Could not load model /home/**/**/**/public_html/webstoretest/admin/model/setting/extension.php! in /home/**/**/**/public_html/webstoretest/system/engine/loader.php on line 63
Anyone who knows how to help??