I am on Joomla version 3.8.2 with Php 7. I tried to upgrade to CiviCRM 4.7.28 but I received and error message (I didn't capture it) that it could not unzip the file because I have php 7. Unfortunately, I no longer have access to the administration panel as I am getting a blank screen.
These are the error messages:
Warning: require_once(CRM/Core/ClassLoader.php): failed to open stream: No such file or directory in /home/pastoral99/public_html/administrator/components/com_civicrm/civicrm.settings.php on line 462
Fatal error: require_once(): Failed opening required 'CRM/Core/ClassLoader.php' (include_path='.:/home/pastoral99/public_html/administrator/components/com_civicrm/civicrm:/home/pastoral99/public_html/administrator/components/com_civicrm/civicrm/packages:.:/opt/alt/php70/usr/share/pear') in /home/pastoral99/public_html/administrator/components/com_civicrm/civicrm.settings.php on line 462
Please HELP!