Reply To: update failed

The good side of server structures is that nothing get completely lost. If the right files are on the right place again it will work without any damage. So re-installing the plugin was right.
If modules can’t be installed through the premium menu, due to servers security settings, you’ve always the option to install them manually through FTP.

Download the modules on this site, extract the content of the .zip files and copy it to /wp-content/plugins/easyreservations/ like as you installed wordpress.

Regards feryaz