Default settings file
The default settings file does not exist.
The DITT Bhutan installer requires that the ./sites/default/default.settings.php file not be modified in any way from the original download.
The Settings file is not writable.
The DITT Bhutan installer requires write permissions to ./sites/pcc.bt/settings.php during the installation process. The webhosting issues documentation section offers help on this and other topics.
ImageWidgetCrop libraries files are correctly configured to use Libraries API files
PHP OPcode caching
Random number generation
PHP memory limit
Writable (public download method)
PHP Mbstring Extension
The ./sites/pcc.bt/settings.php exists.