Errors in logs WordPress multisite

Hi go3asy, may I ask if you’re still seeing these errors and which version you are using? And did you activate the plugin network-wide or only on one or some sites?

Wanting to use this plugin on a Multisite, I saw your post and looked inside lib/the-events-calendar.class.php but the line 3555 reported in the first error does not seem to correspond with anything related in version 3.9.1 …

The last exception error line 3769 does seem to be the last line (with closing curly) of function previousMonth( $date ) which indeed tries to format date string. With either LcAocQKiQYosn-01 or 10121985-01 as date string input, the error is no surprise. No idea though why it would receive such input.

In any case, the function previousMonth should really do a strtotime() (or checkdate()?) instead of using unvalidated input for its new DateTime( $date ); object construction. So even though that won’t fix your strange date string, it should prevent the exception error.

Hope the devs will pick this up soon ??

Its only active on one site. I am on the latest version of the plugin as well, always updated on day or release.

Wondering now if network wide activation would make a difference, cant see why though.

Having said that I copied the post i made a while ago (same error) so the error will have come from an older version of the plugin. There is many repeats of the error but here is a lift of the logs today,

They come in daily and the more events in the cal the more of the errors,

[19-Feb-2015 10:16:08 UTC] PHP Fatal error:  Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (aTixaKoQiCLw-01) at position 0 (a): The timezone could not be found in the database' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php:3759
Stack trace:
#0 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php(3759): DateTime->__construct('aTixaKoQiCLw-01')
#1 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(290): TribeEvents->previousMonth('aTixaKoQiCLw-01')
#2 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(243): tribe_get_previous_month_link()
#3 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/views/month/nav.php(22): tribe_events_the_previous_month_link()
#4 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/general.php(89): include('/home/nhsforth/...')
#5 /home in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php on line 3759
[19-Feb-2015 10:36:22 UTC] PHP Fatal error:  Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (vkAdAPWJQqjHdPucEyc-01) at position 0 (v): The timezone could not be found in the database' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php:3759
Stack trace:
#0 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php(3759): DateTime->__construct('vkAdAPWJQqjHdPu...')
#1 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(290): TribeEvents->previousMonth('vkAdAPWJQqjHdPu...')
#2 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(243): tribe_get_previous_month_link()
#3 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/views/month/nav.php(22): tribe_events_the_previous_month_link()
#4 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/general.php(89): include('/home/nhsforth/. in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php on line 3759
[19-Feb-2015 10:55:37 UTC] PHP Fatal error:  Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (zgNkYdiFBXa-01) at position 0 (z): The timezone could not be found in the database' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php:3759
Stack trace:
#0 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php(3759): DateTime->__construct('zgNkYdiFBXa-01')
#1 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(290): TribeEvents->previousMonth('zgNkYdiFBXa-01')
#2 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(243): tribe_get_previous_month_link()
#3 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/views/month/nav.php(22): tribe_events_the_previous_month_link()
#4 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/general.php(89): include('/home/nhsforth/...')
#5 /home/nh in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php on line 3759
[19-Feb-2015 11:07:34 UTC] PHP Fatal error:  Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (QbnjelbNLK-01) at position 0 (Q): The timezone could not be found in the database' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php:3759
Stack trace:
#0 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php(3759): DateTime->__construct('QbnjelbNLK-01')
#1 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(290): TribeEvents->previousMonth('QbnjelbNLK-01')
#2 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(243): tribe_get_previous_month_link()
#3 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/views/month/nav.php(22): tribe_events_the_previous_month_link()
#4 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/general.php(89): include('/home/nhsforth/...')
#5 /home/nhsfo in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php on line 3759
[19-Feb-2015 11:45:16 UTC] PHP Fatal error:  Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (dmcSXRurAZiQTfCR-01) at position 0 (d): The timezone could not be found in the database' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php:3759
Stack trace:
#0 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php(3759): DateTime->__construct('dmcSXRurAZiQTfC...')
#1 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(290): TribeEvents->previousMonth('dmcSXRurAZiQTfC...')
#2 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(243): tribe_get_previous_month_link()
#3 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/views/month/nav.php(22): tribe_events_the_previous_month_link()
#4 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/general.php(89): include('/home/nhsforth/...' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php on line 3759
[19-Feb-2015 11:48:36 UTC] PHP Fatal error:  Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (IrXGmQGMKWfKN-01) at position 0 (I): The timezone could not be found in the database' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php:3759
Stack trace:
#0 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php(3759): DateTime->__construct('IrXGmQGMKWfKN-0...')
#1 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(290): TribeEvents->previousMonth('IrXGmQGMKWfKN-0...')
#2 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(243): tribe_get_previous_month_link()
#3 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/views/month/nav.php(22): tribe_events_the_previous_month_link()
#4 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/general.php(89): include('/home/nhsforth/...')
# in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php on line 3759
[19-Feb-2015 12:21:12 UTC] PHP Fatal error:  Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (jhXgWuuNBPtBy-01) at position 0 (j): The timezone could not be found in the database' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php:3759
Stack trace:
#0 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php(3759): DateTime->__construct('jhXgWuuNBPtBy-0...')
#1 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(290): TribeEvents->previousMonth('jhXgWuuNBPtBy-0...')
#2 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(243): tribe_get_previous_month_link()
#3 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/views/month/nav.php(22): tribe_events_the_previous_month_link()
#4 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/general.php(89): include('/home/nhsforth/...')
# in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php on line 3759
[19-Feb-2015 12:24:41 UTC] PHP Fatal error:  Uncaught exception 'Exception' with message 'DateTime::__construct(): Failed to parse time string (eojrcyYTv-01) at position 0 (e): The timezone could not be found in the database' in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php:3759
Stack trace:
#0 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php(3759): DateTime->__construct('eojrcyYTv-01')
#1 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(290): TribeEvents->previousMonth('eojrcyYTv-01')
#2 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/month.php(243): tribe_get_previous_month_link()
#3 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/views/month/nav.php(22): tribe_events_the_previous_month_link()
#4 /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/public/template-tags/general.php(89): include('/home/nhsforth/...')
#5 /home/nhsforth in /home/nhsforth/public_html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.class.php on line 3759

Howdy guys,

First of all, thanks for pointing this out. This looks to me like a known error. Since our audit determined it has 0 impact on the security or functionality of the site, we logged it as a very low priority bug. It is a bug though, and one we plan to fix as soon as all of our higher priority ones have been addressed. Don’t quote me on this, but I would not be surprised if that happens during the release after next (the next ones patches a number of low impact bugs, but not this yet).

I do really appreciate you guys taking the time to test and isolate this. I will pass this on when we are prioritizing bugs next, that a couple more folks are seeing these errors and would like to see them gone. Just know that the errors do not seem to be indicating actual problems, they are just unfortunately polluting the log file everytime your site is probed by a bot or similar circumstance.

Cheers!

– Brook