1) Empty the cache folder in data.zip 2) Use defaultcity as default city while installation and country United States 3) Check upgrade.php 4) Download the Language packs here: http://download.moodle.org/langpack/ 5) Unpack the packages in the datadir and change the language [[language]] in SQL config and users table. 6) Release date : https://download.moodle.org/releases/legacy/