Undefined index: timezone — _cleantalk_check_spam()

Hello, everyone.

I’m using version 3.32 of the CleanTalk module on my v7.53 Drupal 7 installation.

When a new user account is created, I’m seeing a watchdog() notice: Undefined index: timezone in _cleantalk_check_spam() (line 2026 of /sites/all/modules/cleantalk/cleantalk.module).

The array $spam_check doesn’t ever have the index ‘timezone’ set and I cannot see where it ever would be set. Is this something we’ve done wrong on our side? Otherwise, the module has worked and continues to work great!

Thank you,
Tom