osTicket Version v1.9.11 (c1b5a33) — Up to dateWeb Server Software Apache/2.2.29 (Unix) mod_ssl/2.2.29 OpenSSL/1.0.1e-fips DAV/2 mod_bwlimited/1.4MySQL Version 5.5.42PHP Version 5.4.42Staff Side of the UIHiI have installed the WordPress plugin Key4ce osTicket Bridge and configured it. However this plug in requires that the osTicket Attachement Filesystem Plugin be installed as well.I have downloaded and Ftp'd the storage-fs.phar file to the location on the server (/public_html/support/include/plugins). However, In Manage, Plugins, Add New Plugin - No Plugin's are shown to add.I have followed the installation instructions found athttps://github.com/osTicket/osTicket-1.8/issues/1243but cannot get further than step 2 in these instructions.I have osTicket installed on a number of sites at the same hosting service and tried installing the same plug-in on another site (without the WordPress plugin) by transferring the file storage-fs.phar (/public_html/osticket/include/plugins) and get the same result as described above.Does anyone have any suggestions for me please?