PHP script '/home/mekas445/domains/mekashop.com/public_html/system/storage/cache/pagecache/caching.php' is protected by SourceGuardian and requires a SourceGuardian loader 'ixed.5.6.lin' to be installed.

1) Download the required loader 'ixed.5.6.lin' from the SourceGuardian site: http://www.sourceguardian.com/loaders/download.php?php_v=5.6.40&php_ts=0&php_is=8&os_s=Linux&os_r=2.6.32-754.14.2.el6.x86_64&os_m=x86_64
2) Install the loader to /usr/local/php56/lib/php/extensions/no-debug-non-zts-20131226
3) Edit /usr/local/php56/lib/php.ini and add 'extension=ixed.5.6.lin' directive