Directory permissions & requirements

Fatal error: Uncaught TypeError: sizeof(): Argument #1 ($value) must be of type Countable|array, null given in /home/test/public_html/install/php/Requirements.php:67 Stack trace: #0 /home/test/public_html/install/php/Requirements.php(67): sizeof() #1 /home/test/public_html/install/index.php(257): Php\Requirements->directoriesAndPermission() #2 {main} thrown in /home/test/public_html/install/php/Requirements.php on line 67

Directory & Permissions	Status
Your server does not meet the following requirements.
../application/config/database.php is not writeable	Error
../application/config/config.php is not writeable	Error
php/Database.php is not writeable	Error
sql/install.sql is not writeable	Error