PHP Zip extension is not installed
Your PHP version (7.0.30-0+deb9u1) is greater than the minimum required: 5.5.9 - Additional Information
PHP GD (Image Manipulation Library) is installed
PHP Curl (Data Transfer Library) is installed
PHP OpenSSL (Secure Sockets Library) is installed
PHP XML Library is installed
PHP Mbstring (Multibyte String Library) is installed
/home/htdocs/rz205/html/cache exists and is writeable
/home/htdocs/rz205/html/logs exists and is writeable
/home/htdocs/rz205/html/images exists and is writeable
/home/htdocs/rz205/html/assets exists and is writeable
/home/htdocs/rz205/html/system exists
/home/htdocs/rz205/html/user/data exists and is writeable
/home/htdocs/rz205/html/user/pages exists
/home/htdocs/rz205/html/user/config exists
/home/htdocs/rz205/html/user/plugins/error exists
/home/htdocs/rz205/html/user/plugins exists
/home/htdocs/rz205/html/user/themes exists
/home/htdocs/rz205/html/vendor exists
/home/htdocs/rz205/html/backup exists and is writeable
/home/htdocs/rz205/html/tmp exists and is writeable