Schedule for GeoIP database update with wrong date

I have recently discovered your plugin and installed it on two WordPress websites. I works really well, but found an small glitch. If I enable the “Schedule monthly update of the GeoIP database”, the date of the next update always is set as “03/01/1970 @ 16:40” (the hour may change on the two sites, but the date always is January 1970). The database update doesn’t seem to run.

If it can help, the scheduled update of the referral spam blacklist shows the correct date and runs as expected).

Thank you for your plugin 🙂