Title: Upgrade error database 4.0
Last modified: August 22, 2016

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# Upgrade error database 4.0

 *  [trunkpk](https://wordpress.org/support/users/trunkpk/)
 * (@trunkpk)
 * [11 years, 8 months ago](https://wordpress.org/support/topic/upgrade-error-database-40/)
 * Hello all,
 * When I upgrade to 4.0 it is showed an message like: you have to update your database
   and a button: click to update your database
 * When I do that, appears a blank web and I can do nothing. No errors or anything.
 * The web works ok but when i try to do login appears the same warning message:
   you have to…
 * Any solutions?
 * Thanks

Viewing 7 replies - 1 through 7 (of 7 total)

 *  [Rogee](https://wordpress.org/support/users/rogee/)
 * (@rogee)
 * [11 years, 8 months ago](https://wordpress.org/support/topic/upgrade-error-database-40/#post-5269305)
 * I believe your WordPress memory limit is too low to update the DB.
 * I ran into the same exact problem, and found a solution on this page: [http://wordpress.org/support/topic/database-update-required-4](http://wordpress.org/support/topic/database-update-required-4)
 * edit:
    wp-includes/default-constants.php line 23: define(‘WP_MEMORY_LIMIT’, ’
   40M’);
 * temporarily change to 40M to 128M
 *  [Jakub](https://wordpress.org/support/users/jakubgardner/)
 * (@jakubgardner)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/upgrade-error-database-40/#post-5269543)
 * [@rogee](https://wordpress.org/support/users/rogee/) sorry for writing here –
   contact me on priv (by form on my site) about DOCS malware, I will help you..
 *  [WPyogi](https://wordpress.org/support/users/wpyogi/)
 * (@wpyogi)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/upgrade-error-database-40/#post-5269544)
 * **[@jakub](https://wordpress.org/support/users/jakub/)** – please do be aware
   of the forum guidelines about asking people to contact you off the forums.
 * [http://codex.wordpress.org/Forum_Welcome#Helping_Out](http://codex.wordpress.org/Forum_Welcome#Helping_Out)
 *  [Jakub](https://wordpress.org/support/users/jakubgardner/)
 * (@jakubgardner)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/upgrade-error-database-40/#post-5269545)
 * [@wpyogi](https://wordpress.org/support/users/wpyogi/)
 * OK, but I got an email notification that affects malware DOCS – a problem which
   I myself do not fully solved – and I wanted to answer to Rogee, but you so quick
   closed the thread!
 * And here there is no option – send a private message – what I had to do to he
   saw my message?
 * Please open this thread or move it in the right place. nowhere on the internet
   there is no information about the DOCS-issue and how to remove it .. maybe can
   we succeed here?
 * This:
    [https://wordpress.org/support/topic/strange-plugin-docs-related-with-jetpack-malware?replies=6#post-6819121](https://wordpress.org/support/topic/strange-plugin-docs-related-with-jetpack-malware?replies=6#post-6819121)
 *  [WPyogi](https://wordpress.org/support/users/wpyogi/)
 * (@wpyogi)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/upgrade-error-database-40/#post-5269546)
 * The main reason I closed that thread is that the hack has nothing to do with 
   JetPack – so that’s really not a good place for any discussion of that problem.
 * If Rogee opens a new thread as I suggested, then that would be the place to discuss
   this issue… but really, if a site is hacked, see the resources posted about how
   to clean those up…
 *  [WPyogi](https://wordpress.org/support/users/wpyogi/)
 * (@wpyogi)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/upgrade-error-database-40/#post-5269547)
 * Also, unfortunately, we cannot (due to technical limitations) move threads out
   of a sub-forum – otherwise, yes, that would have happened in the first place :)!
 *  [Jakub](https://wordpress.org/support/users/jakubgardner/)
 * (@jakubgardner)
 * [11 years ago](https://wordpress.org/support/topic/upgrade-error-database-40/#post-5269548)
 * I will start new topic, but tell me in which category is the best to do it?

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Upgrade error database 4.0’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 7 replies
 * 4 participants
 * Last reply from: [Jakub](https://wordpress.org/support/users/jakubgardner/)
 * Last activity: [11 years ago](https://wordpress.org/support/topic/upgrade-error-database-40/#post-5269548)
 * Status: not resolved

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