Title: [Plugin: Backup] Catchable fatal error
Last modified: August 20, 2016

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# [Plugin: Backup] Catchable fatal error

 *  Resolved [allenmanning](https://wordpress.org/support/users/allenmanning/)
 * (@allenmanning)
 * [14 years ago](https://wordpress.org/support/topic/plugin-backup-catchable-fatal-error/)
 * Catchable fatal error: Method WP_HTML_Compression::__toString() must return a
   string value in <domain>/public_html/wp-includes/functions.php on line 3335
 * I see this when I try to do a manual backup via: <domain>/?backup
 * [http://wordpress.org/extend/plugins/backup/](http://wordpress.org/extend/plugins/backup/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [iclanzan](https://wordpress.org/support/users/helio-1/)
 * (@helio-1)
 * [14 years ago](https://wordpress.org/support/topic/plugin-backup-catchable-fatal-error/#post-2818763)
 * Am I safe to guess you’re using a WP version other than 3.4?
 * Is there anything written to backup.log? What PHP version are you using? Do you
   have cURL enabled?
 *  [iclanzan](https://wordpress.org/support/users/helio-1/)
 * (@helio-1)
 * [14 years ago](https://wordpress.org/support/topic/plugin-backup-catchable-fatal-error/#post-2818767)
 * Ok, I got it. It has something to do with this plugin:
    [http://wordpress.org/extend/plugins/wp-html-compression/](http://wordpress.org/extend/plugins/wp-html-compression/)
 *  Thread Starter [allenmanning](https://wordpress.org/support/users/allenmanning/)
 * (@allenmanning)
 * [14 years ago](https://wordpress.org/support/topic/plugin-backup-catchable-fatal-error/#post-2818768)
 * Many thanks. Disabling the `wp-html-compression` plugin solved the problem. Yes,
   I’m currently on 3.3.2.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘[Plugin: Backup] Catchable fatal error’ is closed to new replies.

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 * 3 replies
 * 2 participants
 * Last reply from: [allenmanning](https://wordpress.org/support/users/allenmanning/)
 * Last activity: [14 years ago](https://wordpress.org/support/topic/plugin-backup-catchable-fatal-error/#post-2818768)
 * Status: resolved