I attempted to install osticket-plugin-archiver (https://github.com/clonemeagain/osticket-plugin-archiver) from 'Admin Panel > Manage > Install Plugins' yesterday and it resulted in HTTP 500 Errors on all the osTicket pages within our IIS environment.

After deleting the pluginfrom the include/plugins folder I was able to login again but started noticing errors appear every 15 sec in C:\Windows\Temp\PHP53_errors.log:

PHP Warning: include(C:/inetpub/wwwroot/helpdesk/include/plugins/osticket-plugin-archiver/plugin.php): failed to open stream: No such file or directory in C:\inetpub\wwwroot\helpdesk\include\class.plugin.php on line 274

PHP Warning: include(): Failed opening 'C:/inetpub/wwwroot/helpdesk/include/plugins/osticket-plugin-archiver/plugin.php' for inclusion (include_path='./;C:/inetpub/wwwroot/helpdesk/include/;C:/inetpub/wwwroot/helpdesk/include/pear/') in C:\inetpub\wwwroot\helpdesk\include\class.plugin.php on line 274

PHP Warning: array_merge(): Argument #2 is not an array in C:\inetpub\wwwroot\helpdesk\include\class.plugin.php on line 274

PHP Warning: include(C:/inetpub/wwwroot/helpdesk/include/plugins/Archiver/plugin.php): failed to open stream: No such file or directory in C:\inetpub\wwwroot\helpdesk\include\class.plugin.php on line 274

PHP Warning: include(): Failed opening 'C:/inetpub/wwwroot/helpdesk/include/plugins/Archiver/plugin.php' for inclusion (include_path='./;C:/inetpub/wwwroot/helpdesk/include/;C:/inetpub/wwwroot/helpdesk/include/pear/') in C:\inetpub\wwwroot\helpdesk\include\class.plugin.php on line 274

PHP Warning: array_merge(): Argument #2 is not an array in C:\inetpub\wwwroot\helpdesk\include\class.plugin.php on line 274

How can I fix this? (Less important: Why did the plugin install fail?) Thanks in advance guys!