Moderator
t-p
(@t-p)
what cache plugin are you using?
How would I know? I didn’t install one on purpose. Here’s my list:
Akismet
Child Theme Configurator
Code Snippets
Disable Comments
Duplicate Post
Easy Google Fonts
Enhanced Media Library
Facebook Like Box
Go Daddy Quick Setup
Google Tag Manager for WordPress
Gravity Forms
Gravity Forms Polls Add-On
Gravity Forms Signature Add-On
Gravity Forms Survey Add-On
Gravity PDF
Job Manager
LinkedIn Company Updates
One Source QR Scan
Redirection
Search Engine Visibility
Sidekick
The Events Calendar
Updraft Plus -Backup/Restore
WP Notification Bars
WP101 Video Tutorials
Yeast SEO
Hello onesourcebackground I am getting the same error, and have no idea why, the error is random at showing up and once i got multiple errors like the folloiwng:
Warning: Class __PHP_Incomplete_Class has no unserializer in /home/content/p3pnexwpnas10_data01/33/2567433/html/wp-content/object-cache.php on line 520
Warning: session_start(): Cannot send session cache limiter – headers already sent (output started at /home/content/p3pnexwpnas10_data01/33/2567433/html/wp-content/object-cache.php:520) in /home/content/p3pnexwpnas10_data01/33/2567433/html/wp-content/themes/invicta/includes/logic-hooks.php on line 210
Warning: Cannot modify header information – headers already sent by (output started at /home/content/p3pnexwpnas10_data01/33/2567433/html/wp-content/object-cache.php:520) in /home/content/p3pnexwpnas10_data01/33/2567433/html/wp-includes/pluggable.php on line 1171
No idea why i went to those lines in the php but I dont know enough if it is wrongly written, but im sure it has to do with wordpress new version.
I had it for my site tbsmo.com
Same error. Maybe because of some recent updates. 4.5.1. Flushing the cache and refreshing the page works but still can’t get rid of it completely.
This is because of godaddy caching, not a plugin that you have installed. Contact godaddy support and tell them to clear your cache. Seems to be an issue for many people suddenly who are using godaddy wordpress hosting.
Ok but some are saying its not getting solved even after contacting Godaddy.
I have this same error. However only when I add www in front of my domain. http://sellemental.com produces no error http://www.Sellemental.com does.
Warning: Class __PHP_Incomplete_Class has no unserializer in /home/content/p3pnexwpnas13_data02/77/3033977/html/wp-content/object-cache.php on line 520
Warning: Cannot modify header information – headers already sent by (output started at /home/content/p3pnexwpnas13_data02/77/3033977/html/wp-content/object-cache.php:520) in /home/content/p3pnexwpnas13_data02/77/3033977/html/wp-includes/pluggable.php on line 1171
GoDaddy is claiming it’s not a GD problem but all posts seem to point only them.
???
GD ended up changing my domain to http://www.sellemental.com instead of sellemental.com which eliminated the need to redirect … which fixed the problem.
****** SOLUTION *********
This fixed the symptom but not the root of the problem, which is something on the Godaddy Managed WordPress side.
I got this fix after several hours with GD support. As mentioned above there is a problem with the GD caching feature, until they fix it you can do this!
SOLUTION (for Godaddy Managed WordPress Sites):
1) FTP into your wp-content folder
2) rename “object-cache.php” to “object-cache-DISABLED.php”
3) flush your site cache using the GD menu function at the top of your WP admin CP
4) get a beer
The more sites you have to fix, the more beers you will need.
Happy hacking!
Been dealing with this for a few days now. What’s funny is every time I call GoDaddy it’s the first they’ve ever heard of this issue, they have no clue what could be causing it, and no clue how to fix it. A little bit odd.
Perfect, @karlalexander-vqz your workaround seemed to fix the issue. Though does this mean the site is without caching?
The correct way to resolve this issue. For example if your site was testsite.com and when you go to the site and you are getting a similar error to :
Warning: Class __PHP_Incomplete_Class has no unserializer in /home/content/p3pnexwpnas13_data02/77/3033977/html/wp-content/object-cache.php on line 520
The resolution would be if you are a Godaddy customer to check gateway.godaddy.com and click on settings for the site with the issue. Under the Domain tab If the site is set to http://www.testsite.com then click on actions and select make testsite.com primary and click on ok .
Give 5-30 minutes for this to update and this should resolve the issue .
Today, one of my clients emailed me with the same error message. This thread was very helpful, as they are on GoDaddy WordPress Managed Hosting. I called GoDaddy, and they fixed the problem.
