Using The Index Offline
From PhpCOIN Documentation
Using The Index Offline
Along with the package comes the option of a temporary offline page, you'll find in the root instalation folder (index_offline.html). You can customize the page to suit your needs. To activate this option and this page, check line 47 of the config.php file and change it to 1.
Offline flag to initiate redirect in core load (1=offline,0=normal) $_CCFG['_PKG_MODE_OFFLINE'] = 0;
To remove it, just change back to 0.

