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1. wp-vin
   Member
   Posted 1 year ago #

   Hello
   I have been looking through error logs & found this error appearing several times...
   PHP Fatal error: Call to a member function get() on a non-object in .... httpdocs/wp-includes/cache.php on line 93
   Our site is hosted on mediatemple dv extreme server. WP version is 3.0 & WP Super Cache is 0.9.9.6

   I tried different solutions found on this site which are about 1 year old, that didn't help.

   Please help to fix the problem.
   Thank You

   http://wordpress.org/extend/plugins/wp-super-cache/

2. Donncha O Caoimh
   Member
   Posted 1 year ago #

   It isn't caused by wp-super-cache. That's the internal object cache in WordPress and some plugin is trying to use it when the object cache "object" has been destroyed by PHP when a process is finishing.

   Look for wp_cache_get/set/add functions or even the *_options functions in your plugins.

3. wp-vin
   Member
   Posted 1 year ago #

   I try to find those.
   Thank you very much.

4. wp-vin
   Member
   Posted 1 year ago #

   Hi donncha
   I found akismet is using wp_cache_get
   In such case, how can I use both super cache & akismet wihout problem ?
   Both are essential plugins.
   thanks

5. wp-vin
   Member
   Posted 1 year ago #

   Also akismet is using wp_cache_set

6. Donncha O Caoimh
   Member
   Posted 1 year ago #

   Akismet isn't the problem as that's a widely used plugin. It must be something else unfortunately. It could even be your theme.

   That error is completely separate from wp-super-cache so you can use the plugin without causing the error. It's definitely something else.

7. wp-vin
   Member
   Posted 1 year ago #

   We use news_10 theme.
   I will disable other plugins and look for errors.

8. wp-vin
   Member
   Posted 1 year ago #

   can wp_cache_delete cause problem ?

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