Page deleted by WordPress?

[ Moderator note: moved to Fixing WordPress. ]

Today I discovered a page was missing from my WordPress install.

After researching I found it was deleted about a month ago by some outside entity.

A plugin called Simple History is giving me this:

WordPress apr 25, 2017 at 21:58
Deleted pagina “Agenda”
Contextdata
Dit is potentieel bruikbare metadata die de logger opgeslagen heeft.

Key Value
id 18473
logger SimplePostLogger
level info
date 2017-04-25 19:58:35
message Deleted {post_type} “{post_title}”
initiator wp
context_message_key post_deleted
post_id 87
post_type page
post_title Agenda
_message_key post_deleted
_wp_cron_running true
_server_remote_addr 10.0.44.86
_server_http_referer https://www.funtronics.biz/wp-cron.php?doing_wp_cron=1493150301.3199789524078369140625

Researching further with the Slimstat log points me to a USA address 209.141.60.162.

The page is not in the trash. Can someone explain what happened here?

Thanks in advance,

Gerard ter Beke