Seems like something went wrong with their installer.
Try downloading WordPress again, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel, and delete then replace your copies of everything on the server except the wp-config.php file and the /wp-content/ directory with fresh copies from the download. This will effectively replace all of your core files without damaging your content and settings.
Some uploaders tend to be unreliable when overwriting files, so don’t forget to delete the original files before replacing them.
I don’t have an active site yet so I’ve uninstalled and made sure the directory was completely empty and reinstalled, same problem every time. I think in the 4.4.1 version there is some file name discrepancies. I looked through all the config files I could find and saw that some places it’s calling for plugin.php and others it’s calling for plugins.php. And I’m completely dumbfounded on the plugin-install.php, couldn’t find any discrepancies.
I guess the .htaccess file in the root directory needed to be modified.
in .htaccess find the following line and remove “2” (-php52 => php5):
AddHandler application/x-httpd-php52 .php .php5 .php4 .php3
Fix looks like this bellow:
AddHandler application/x-httpd-php5 .php .php5 .php4 .php3
datzone – you are the man! removed the 2 and it works! Thank you very much!
Awesome, glad that worked!