Fata Error message after updating to V1.5.22

Hi Kevin,

Below is an error report I get when updating Cache Purger to the new version; All still works fine with the previous version so I have turned off auto updates for now and restored our site to the working state before the update.

Error Details
=============
An error of type E_ERROR was caused in line 107 of the file /var/www/wp-content/plugins/the-cache-purger/work/inc/modules/file.php. Error message: Uncaught Error: Call to undefined method SplFileInfo::isDot() in /var/www/wp-content/plugins/the-cache-purger/work/inc/modules/file.php:107
Stack trace:
#0 /var/www/wp-content/plugins/the-cache-purger/work/inc/modules/file.php(70): KP_Cache_Purge->full_delete(‘/var/www/wp-con…’)
#1 /var/www/wp-content/plugins/the-cache-purger/work/inc/kp-cache-purge.php(109): KP_Cache_Purge->purge_file_caches()
#2 /var/www/wp-content/plugins/the-cache-purger/work/inc/kp-cache-purge-processor.php(606): KP_Cache_Purge->kp_do_purge()
#3 /var/www/wp-includes/class-wp-hook.php(310): KP_Cache_Purge_Processor->{closure}(Object(Plugin_Upgrader))
#4 /var/www/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#5 /var/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#6 /var/www/wp-admin/includes/class-plugin-upgrader.php(371): do_action(‘upgrader_proces…’, Object(Plugin_Upgrader), Array)
#7 /var/www/wp-admin/includes/ajax-actions.php(4577): Plugin_Upgrader->bulk_upgrade(Array)
#8 /var/www/wp-includes/class-wp-hook.php(308): wp_ajax_update_plugin(”)
#9 /var/www/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(”, Array)
#10 /var/www/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#11 /var/www/wp-admin/admin-ajax.php(188): do_action(‘wp_ajax_update-…’)
#12 {main}
? thrown

All still works fine with V1.5.12

cheers

Paul