Invalid Time Zone and PHP Warning: Undefined array key

  • Resolved mesmer7

    (@mesmer7)


    4 months ago

    Checked my error log this morning and found the following:

    [04-Feb-2026 14:55:24 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [04-Feb-2026 19:25:04 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [05-Feb-2026 13:47:31 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [05-Feb-2026 17:08:09 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [06-Feb-2026 13:55:27 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [06-Feb-2026 18:14:38 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [07-Feb-2026 14:33:00 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [07-Feb-2026 18:41:14 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [08-Feb-2026 14:15:51 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [08-Feb-2026 17:29:20 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [09-Feb-2026 13:49:11 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [09-Feb-2026 17:37:42 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0

    [10-Feb-2026 23:07:47 UTC] PHP Warning: Undefined array key “url” in /home/redacted/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/schema/snippets/class-author.php on line 41
    [10-Feb-2026 23:58:25 UTC] PHP Warning: Undefined array key “url” in /home/redacted/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/schema/snippets/class-author.php on line 41
    [11-Feb-2026 00:30:08 UTC] PHP Warning: Undefined array key “url” in /home/redacted/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/schema/snippets/class-author.php on line 41
    [11-Feb-2026 02:00:09 UTC] PHP Warning: Undefined array key “url” in /home/redacted/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/schema/snippets/class-author.php on line 41
    [11-Feb-2026 13:38:12 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0
    [11-Feb-2026 17:40:49 UTC] PHP Warning: PHP Startup: Invalid date.timezone value ”, using ‘UTC’ instead in Unknown on line 0

    I spent yesterday manually deleting obsolete files from my uploads folder. Could I have deleted something rankmath needs? What is the fix?

Viewing 8 replies - 1 through 8 (of 8 total)
  • Plugin Support Rakibuzzaman Siam

    (@rakibuzzamansiam1)

    3 months, 4 weeks ago

    Hello @mesmer7 ,

    Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.

    It appears that the “invalid date.timezone” warning is not related to the Rank Math plugin.

    Regarding the other warning, it is connected to the author entity in your schema. In this case, please navigate to WordPress Dashboard > Rank Math > Titles and Meta > Authors, and ensure that the “Author Archives” option is enabled.

    Here’s a screenshot for your reference: https://i.rankmath.com/i/RHj61c

    Let us know how it goes. Looking forward to helping you.

    Thread Starter mesmer7

    (@mesmer7)

    3 months, 4 weeks ago

    That can’t be it. I’ve always (3 years) had the author archives disabled, the error just showed up this week.

    But just in case, I enabled and disabled them again.

    Plugin Support Jeremy

    (@jeremrm)

    3 months, 3 weeks ago

    Hello @mesmer7,

    Please observe if you are still getting the same error after changing the author settings. If the issue persists, we will need to check this further on your site. Please email our support team at [email protected] so we can assist you further.

    Looking forward to helping you.

    Thread Starter mesmer7

    (@mesmer7)

    3 months, 3 weeks ago

    Half my site disappeared yesterday. I had to restore from a two-day-old backup. So far, the error hasn’t recurred.

    BTW, does rankmath use the files GeoIP.dat or GeoIPv6.dat? I deleted these files because they looked like leftover from a deleted plugin, but I was wondering if deleting them might have caused my problems?

    Plugin Support Jaideep Asrani

    (@jaideeprm)

    3 months, 3 weeks ago

    Hello @mesmer7,

    If the files were not removed from our plugin’s folder, then deleting them shouldn’t cause any issues with our plugin. Please confirm if you got any error when the site disappeared and if it was related to our plugin.

    Looking forward to helping you.

    Thread Starter mesmer7

    (@mesmer7)

    3 months, 3 weeks ago

    The errors have not recurred since restoring the site from backup 3 days ago.

    GeoIP.dat or GeoIPv6.dat were in the uploads folder. And I haven’t restored them. So deleting them must not have caused the problem.

    I don’t know what actually happened. But the site seems to be fine now. Although I haven’t updated any plugins again since restoring from backup. So maybe one of the plugin (or theme) updates caused a conflict.

    Plugin Support Jeremy

    (@jeremrm)

    3 months, 3 weeks ago

    Hello @mesmer7,

    Thank you for the update. We’re glad to hear your site is stable again. Based on what you’ve described, it seems the errors were not related to Rank Math or the deleted GeoIP files. It’s possible a plugin or theme update may have triggered a temporary conflict.

    If the errors reappear after future updates, please don’t hesitate to reach out so we can investigate further.

    Looking forward to helping you.

    Plugin Support Rakibuzzaman Siam

    (@rakibuzzamansiam1)

    3 months, 2 weeks ago

    Hello @mesmer7 ,
     
    Since we have not heard back from you, we are going to close this thread for now.

    If you still need any assistance, please feel free to reopen this thread or create a new one, and we will be happy to help.
     
    Thank you.

Viewing 8 replies - 1 through 8 (of 8 total)

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