I have recently moved a domain from an old server to a new hosting package.
I moved over all the previous files and backed up the MySQL databases.The website is not loading, with the following error:
expertfaculty.org [Mon Oct 15 11:11:39 2018] [error] [client 77.89.128.187:0] PHP Warning: require(/home/cluster-sites/6/e/expertfaculty.org/public_html/wp-includes/class-wp-widget.php): failed to open stream: No such file or directory in /home/cluster-sites/6/e/expertfaculty.org/public_html/wp-settings.php on line 187
expertfaculty.org [Mon Oct 15 11:11:39 2018] [error] [client 77.89.128.187:0] PHP Fatal error: require(): Failed opening required '/home/cluster-sites/6/e/expertfaculty.org/public_html/wp-includes/class-wp-widget.php' (include_path='.:/usr/share/pear72:/usr/share/php') in /home/cluster-sites/6/e/expertfaculty.org/public_html/wp-settings.php on line 187
The class-wp-widget.php is there in the wp-includes file. One wp-settings.php on line 187 there isn't anything that's relevant.
The website definitely worked under the old server. Not sure what is wrong.
Anyone can help on that? Thanks!