Monsta FTP requires support for a few components within PHP. Sometimes these are enabled by default (in newer versions) and sometimes they are off by default (in older versions). If you are the administrator of your server you can easily add support for these components. If you're not, you may be able to ask your web host or server administrator to add support for you.
Using Monsta FTP requires support for the FTP-related functions in PHP.
To do this, open your php.ini file and add this line anywhere in the file:
extension=php_ftp.dll
Finally, recompile PHP.
The Business Edition requires support for OpenSSL in order to read your license file.
To do this, open your php.ini file and add this line anywhere in the file:
extension=php_openssl.dll
Finally, recompile PHP.