lastmod error on sitemap

Hello @sunlight1976

Plugin writes <lastmod> from wp_posts.post_modified and formats it with gmdate. If a page has post_modified = ‘0000-00-00 00:00:00’, common when a page is created programmatically or imported without setting modified dates, strtotime() returns a negative timestamp and gmdate() produces -0001-11-30T00:00:00+00 (line 0), which Google flags as “Data non valida” on the <lastmod> tag. Your /my-bookings/ entry likely has that invalid modified date in the database, so the sitemap entry inherits it. Please edit and re-save the “My Bookings” page and it should resolve the problem.

Please let us know if it doesn’t help.

Best regards