Polylang sudden fatal error

It seems that some data has been corrupted in your DB. I hope you have access to it. Look for the entry _transient_pll_languages_list in the table wp_options and delete it.

Before you delete it could you post the value field here? I would like to see the content. Maybe it will help to protect against this situation.

Hi, I’m having the same message on my website after working on it for several weeks… I tried looking for this entry “transient_pll_languages_list” but I can’t find it…
I need some help please!

https://gemmatraductora.com/

That’s not “transient_pll_languages_list” but “_transient_pll_languages_list”

Hi Chouby,
thanks for your answer.
Here is the info I found in wp_option concerning Polylang.
I’m scared to delete it, but will save a copy for you never know.

I hope this info will help you to make this fantastic plugin even better.
Thanks

Option name /option value:

active_plugins/ a:33:{i:0;s:21:”polylang/polylang.php”;i:1;s:33:”

polylang/
a:14 {s:7:”browser”;i:1;s:7:”rewrite”;i:1;s:12:”hide_default”;i:1;s:10:”force_lang”;i:0;s:13:”redirect_lang”;i:0;s:13:”media_support”;i:1;s:4:”sync”;a:11:{i:0;s:10:”taxonomies”;i:1;s:9:”post_meta”;i:2;s:14:”comment_status”;i:3;s:11:”ping_status”;i:4;s:12:”sticky_posts”;i:5;s:9:”post_date”;i:6;s:11:”post_format”;i:7;s:11:”post_parent”;i:8;s:17:”_wp_page_template”;i:9;s:10:”menu_order”;i:10;s:13:”_thumbnail_id”;}s:10:”post_types”;a:7:{i:0;s:6:”funder”;i:1;s:10:”pec-events”;i:2;s:16:”wpsc_cart_orders”;i:3;s:9:”portfolio”;i:4;s:11:”testimonial”;i:5;s:11:”price_table”;i:6;s:7:”gallery”;}s:10:”taxonomies”;a:7:{i:0;s:19:”pec_events_category”;i:1;s:7:”ngg_tag”;i:2;s:18:”portfolio-category”;i:3;s:13:”portfolio-tag”;i:4;s:20:”testimonial-category”;i:5;s:20:”price-table-category”;i:6;s:14:”media_category”;}s:7:”domains”;a:4:{s:2:”nl”;s:0:””;s:2:”fr”;s:0:””;s:2:”en”;s:0:””;s:2:”de”;s:0:””;}s:7:”version”;s:5:”1.4.2″;s:12:”default_lang”;s:2:”nl”;s:7:”widgets”;a:2:{s:10:”polylang-2″;s:1:”0″;s:12:”categories-3″;s:1:”0″;}s:9:”nav_menus”;a:1:{s:8:”willemgs”;a:1:{s:9:”main_menu”;a:4:{s:2:”nl”;i:2;s:2:”en”;i:236;s:2:”fr”;i:464;s:2:”de”;i:762;}}}}

widget_polylang/a:1:{s:12:”_multiwidget”;i:1;}

_transient_pll_languages_list
a:4:{i:0;O:12:”PLL_Language”:17:{s:7:”term_id”;i:135;s:4:”name”;s:9:”Fran?ais”;s:4:”slug”;s:2:”fr”;s:10:”term_group”;s:1:”2″;s:16:”term_taxonomy_id”;i:148;s:8:”taxonomy”;s:8:”language”;s:11:”description”;s:5:”fr_FR”;s:6:”parent”;s:1:”0″;s:5:”count”;i:34;s:10:”tl_term_id”;i:136;s:19:”tl_term_taxonomy_id”;i:149;s:8:”tl_count”;i:12;s:6:”locale”;R:9;s:6:”is_rtl”;s:1:”0″;s:5:”mo_id”;s:4:”3286″;s:10:”search_url”;s:34:”https://xxx.com/fr/”;s:8:”home_url”;s:52:”https://xxx.com/portrait-de-la-chine/”;}i:1;O:12:”PLL_Language”:17:{s:7:”term_id”;i:224;s:4:”name”;s:7:”Deutsch”;s:4:”slug”;s:2:”de”;s:10:”term_group”;s:1:”3″;s:16:”term_taxonomy_id”;i:238;s:8:”taxonomy”;s:8:”language”;s:11:”description”;s:5:”de_DE”;s:6:”parent”;s:1:”0″;s:5:”count”;i:15;s:10:”tl_term_id”;i:225;s:19:”tl_term_taxonomy_id”;i:239;s:8:”tl_count”;i:0;s:6:”locale”;R:26;s:6:”is_rtl”;s:1:”0″;s:5:”mo_id”;s:4:”4813″;s:10:”search_url”;s:34:”https://xxx.com/de/”;s:8:”home_url”;s:49:”https://xxx.com/portrat-von-china/”;}i:2;O:12:”PLL_Language”:17:{s:7:”term_id”;i:133;s:4:”name”;s:7:”English”;s:4:”slug”;s:2:”en”;s:10:”term_group”;s:1:”4″;s:16:”term_taxonomy_id”;i:146;s:8:”taxonomy”;s:8:”language”;s:11:”description”;s:5:”en_US”;s:6:”parent”;s:1:”0″;s:5:”count”;i:50;s:10:”tl_term_id”;i:134;s:19:”tl_term_taxonomy_id”;i:147;s:8:”tl_count”;i:13;s:6:”locale”;R:43;s:6:”is_rtl”;s:1:”0″;s:5:”mo_id”;s:4:”3285″;s:10:”search_url”;s:34:”https://xxx.com/en/”;s:8:”home_url”;s:49:”https://629.77c.myftpupload.com/portrait-of-china/”;}i:3;O:12:”PLL_Language”:17:{s:7:”term_id”;i:139;s:4:”name”;s:10:”Nederlands”;s:4:”slug”;s:2:”nl”;s:10:”term_group”;s:1:”5″;s:16:”term_taxonomy_id”;i:152;s:8:”taxonomy”;s:8:”language”;s:11:”description”;s:5:”nl_NL”;s:6:”parent”;s:1:”0″;s:5:”count”;i:107;s:10:”tl_term_id”;i:140;s:19:”tl_term_taxonomy_id”;i:153;s:8:”tl_count”;i:153;s:6:”locale”;R:60;s:6:”is_rtl”;s:1:”0″;s:5:”mo_id”;s:4:”3284″;s:10:”search_url”;s:30:”https://xxx.com”;s:8:”home_url”;s:36:”https://xxx.com/home/”;}}

The _transient_pll_languages_list contains inconsistent values. Is it exactly what you have in db? Did you modify manually the site url ? Directly in db or just here before posting it?

It is perfectly safe to delete _transient_pll_languages_list as it is just a cache to avoid evaluating its content at each page load. So if not present it is just re-evaluated and saved again.

Hi Chouby,
I changed the url in this messagebox, so that wasn’t in the code.
I deleted the file, however now the message comes back each time while I’m uploading images.
So, it seems it makes the same mistake over and over again when it makes a new file.
Can you see what is wrong about it because then I can change it manually and maybe it is solve then.

Did the issue change? In your first post, I read:

I am confronted with a fatal error which makes it impossible to open frontend and backend of my WordPress site

and now:

the message comes back each time while I’m uploading images.

Could you tell me what is your current PHP version and what was the PHP version of your previous host?

I noticed an issue with an old version of PHP (I tested PHP 5.2.4, the oldest supported by WP). Not exactly the same as you, but it could be linked to your problem. I fixed it. Maybe it will work for you too. Could you test the development version?
https://downloads.www.ads-software.com/plugin/polylang.zip

Hi,

I set up today account at GoDaddy and I came across the same issue with the current stable version and then development version from the link above. Unfortunately I don’t know how to check which PHP version GoDaddy uses.
I also noticed that this problem never comes up when I’m logged in to WP and it intermittent (but relatively easy to reproduce) when accessing WP site anonymously.

I also have the same issue and i’m also on GoDaddy (managed wordpress).
Latest WP, latest polylang and, I assume, not an old version of PHP.

Here’s the content of _transient_pll_languages_list

a:2:{i:0;O:12:"PLL_Language":17:{s:7:"term_id";i:2;s:4:"name";s:7:"English";s:4:"slug";s:2:"en";s:10:"term_group";s:1:"1";s:16:"term_taxonomy_id";i:2;s:8:"taxonomy";s:8:"language";s:11:"description";s:5:"en_US";s:6:"parent";s:1:"0";s:5:"count";i:5;s:10:"tl_term_id";i:3;s:19:"tl_term_taxonomy_id";i:3;s:8:"tl_count";i:1;s:6:"locale";R:9;s:6:"is_rtl";s:1:"0";s:5:"mo_id";N;s:10:"search_url";s:31:"https://hmroads.com/language/en/";s:8:"home_url";s:31:"https://hmroads.com/language/en/";}i:1;O:12:"PLL_Language":17:{s:7:"term_id";i:4;s:4:"name";s:16:"Latvie?u valoda";s:4:"slug";s:2:"lv";s:10:"term_group";s:1:"2";s:16:"term_taxonomy_id";i:4;s:8:"taxonomy";s:8:"language";s:11:"description";s:2:"lv";s:6:"parent";s:1:"0";s:5:"count";i:4;s:10:"tl_term_id";i:5;s:19:"tl_term_taxonomy_id";i:5;s:8:"tl_count";i:1;s:6:"locale";R:26;s:6:"is_rtl";s:1:"0";s:5:"mo_id";N;s:10:"search_url";s:31:"https://hmroads.com/language/lv/";s:8:"home_url";s:31:"https://hmroads.com/language/lv/";}}

Well, now that i’ve copied it here, I’ll try and delete it ??

Hi!

The content of _transient_pll_languages_list looks good. So the database shouldn’t be corrupted. So the problem may come from the PHP version or some server configuration I ignore.

I just released Polylang 1.5.3. With this version, you should disable the problematic code by setting:

define('PLL_CACHE_LANGUAGES', false);

in wp-config.php. So there will be no more need to modify the plugin code in the future.
This will remain an option as it slightly decreases the performance of Polylang and works as is for most users.

Hi Chouby,

I’m getting intermittent fatal errors as well:
Fatal error: Cannot use object of type __PHP_Incomplete_Class as array in /home/content/p3pnexwpnas05_data03/05/2268205/html/wp-includes/functions.php on line 3006

These errors happens only for anonymous users. They never happen when I’m logged in as an admin.

I added the define(‘PLL_CACHE_LANGUAGES’, false); setting in wp-config.php but it does not solve the problem.

The host is MediaTemple Premium WordPress, which implements 4 layers of caching (Varnish, Memcached, PHP APC, and storage L2 caching). It seems to be related to caching.

The site is fairly simple with only 3 other plugins activated (Yoast SEO, Yoast Analytics and TinyMCE Advanced)…. so no conflict there as far as I know.

Any ideas?

Some additional infos:

– I’m using 1.5.6 on WordPress 4.0.

– I have disabled also the Detect languages (as per another thread post)… seems to help to reduce the occurency of the fatal errors, but they still happen.

Hi!

Did you put

define('PLL_CACHE_LANGUAGES', false);

*above*

/* That's all, stop editing! Happy blogging. */