JLike crashes on comments section in admin backend

This was included when downloaded shika early release, but it crashes when I click on comments,


Warning: include_once(/var/www/html/sandbox/media/techjoomla_strapper/strapper.php): failed to open stream: No such file or directory in /var/www/html/sandbox/administrator/components/com_jlike/views/annotations/tmpl/default.php on line 14

Warning: include_once(): Failed opening '/var/www/html/sandbox/media/techjoomla_strapper/strapper.php' for inclusion (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/html/sandbox/administrator/components/com_jlike/views/annotations/tmpl/default.php on line 14

Fatal error: Class 'TjAkeebaStrapper' not found in /var/www/html/sandbox/administrator/components/com_jlike/views/annotations/tmpl/default.php on line 15

Any ideas how to resolve this?