Requirements problem

Errors found

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.
Settings file
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.

Checked

ImageWidgetCrop library
Correctly configured
ImageWidgetCrop libraries files are correctly configured to use Libraries API files

OK

Web server
Apache/2.4.25 (Debian)
PHP
7.2.5-1+0~20180505045740.21+stretch~1.gbpca2fa6
PHP extensions
Enabled
PHP OPcode caching
Enabled
Random number generation
Successful
Database support
Enabled
PHP memory limit
128M
File system
Writable (public download method)
Unicode library
PHP Mbstring Extension
Settings file
The ./sites/pcc.bt/settings.php exists.
Check the messages and try again.