File Health Check error

Code:

Fatal error: Class 'bdPaygate_FileSums' not found in /public_html/forums/library/bdPaygate/Listener.php on line 118

Getting that when I try to do a file health check...

Stack Trace

Code:

#0 [internal function]: XenForo_Application::handleFatalError()
#1 {main}

Request State

Code:

array(3) {
["url"] => string(51) "forums/admin.php?tools/file-check"
["_GET"] => array(1) {
["tools/file-check"] => string(0) ""
}
["_POST"] => array(1) {
["_xfToken"] => string(8) "********"