I had a website running 5.6. It got "upgraded" to 5.7 by mistake. I reinstalled 5.6 and restored my backup (from yesterday) and got the following messages:

Warning: require_once(/home/stevengj/public_html/packages/page_hit_counter/blocks/page_hit_counter/controller.php): failed to open stream: No such file or directory in /home/stevengj/public_html/concrete/core/libraries/loader.php on line 217

Fatal error: require_once(): Failed opening required '/home/stevengj/public_html/packages/page_hit_counter/blocks/page_hit_counter/controller.php' (include_path='/home/stevengj/public_html/libraries/3rdparty:/home/stevengj/public_html/concrete/libraries/3rdparty:.:/opt/alt/php54/usr/share/pear:/opt/alt/php54/usr/share/php') in /home/stevengj/public_html/concrete/core/libraries/loader.php on line 217

Now I can't log in. Please advise on how to get my site back. Thanks.