site crashed (chicagowebfactory.com)

I was running a Defender scan and my site crashed. chicagowebfactory.com presents this error message:
Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0

Fatal error: Unknown: Failed opening required '/home/mickspop/public_html/wordfence-waf.php' (include_path='.:disappointed:opt/php54/lib/php') in Unknown on line 0