This is what my sites are showing:
[Sep 03 02:00:10] Scan terminated with error: We received an error response when trying to contact the Wordfence scanning servers. The HTTP status code was [502] and the curl error number was [0]
[Sep 03 03:19:03] Call to Wordfence API to resolve IPs failed: We received an error response when trying to contact the Wordfence scanning servers. The HTTP status code was [502] and the curl error number was [0]