PHP Version (need at least version 5.3.7) You have 5.4.19It is very important to have at least PHP Version 5.3.7.
PDO Driver must be enabled EnabledPDO driver is very important so it must enabled. Without this, the script will not connect to the database hence it will not work at all. If this check fails, you will need to contact your web host and ask them to either enable it or configure it properly.
Config.sample.php must be accessible. AccessibleThis installation will open that file to put values in so it must be accessible. Make sure that file is there in the includes folder and is writable.
content/ folder must writable. AccessibleMany things will be uploaded to that folder so please make sure it has the proper permission.
allow_url_fopen Enabled EnabledThe function file_get_contents is used to validate URLs and to get the country of the user. This function is not required but some features may not work properly.
cURL Enabled EnabledcURL is mainly used to get statistics from Google Analytics, if you want to use the built-in statistics then this is not required.