Title: [Plugin: BackWPup] Errors backing up database, started after latest upgrade
Last modified: August 20, 2016

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# [Plugin: BackWPup] Errors backing up database, started after latest upgrade

 *  [buzzquake](https://wordpress.org/support/users/buzzquake/)
 * (@buzzquake)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-backwpup-errors-backing-up-database-started-after-latest-upgrade/)
 * The first day after upgrading I got the following error messages:
 * 2012/08/21 03:30.21: [WARNING] stat() [function.stat]: stat failed for /homepages/
   45/d418074915/htdocs/tftp/wp-content/w3tc/objectcache/e/f/5/ef54ff19e6a736de1b36e4e6de6d75cd
   
   2012/08/21 03:30.22: 5451 files with 250.21 MB to backup 2012/08/21 03:30.22:
   1. try to create backup zip (PclZip) archive… 2012/08/21 03:30.22: [ERROR] Zip
   archive create error: PCLZIP_ERR_INVALID_ATTRIBUTE_VALUE (-20) : Invalid type
   NULL. Integer expected for attribute ‘PCLZIP_ATT_FILE_MTIME’ 2012/08/21 03:30.22:[
   WARNING] filesize() [function.filesize]: stat failed for /homepages/45/d418074915/
   htdocs/tftp/ /homepages/45/d418074915/htdocs/tftp/backups/backwpup_1_2012-08-
   21_03-30-17.zip
 * The next day I got way more of these messages (150+)
 * [WARNING] stat() [function.stat]: stat failed for …
 * And these are essentially the same:
 * 2012/08/22 03:03.01: 1. try to create backup zip (PclZip) archive…
    2012/08/22
   03:03.02: [ERROR] Zip archive create error: PCLZIP_ERR_INVALID_ATTRIBUTE_VALUE(-
   20) : Invalid type NULL. Integer expected for attribute ‘PCLZIP_ATT_FILE_MTIME’
   2012/08/22 03:03.02: [WARNING] filesize() [function.filesize]: stat failed for/
   homepages/45/d418074915/htdocs/tftp/ /homepages/45/d418074915/htdocs/tftp/backups/
   backwpup_1_2012-08-22_03-02-55.zip
 * Anyone have any suggestions of how I can fix this? Thanks!
 * [http://wordpress.org/extend/plugins/backwpup/](http://wordpress.org/extend/plugins/backwpup/)

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Daniel Hüsken](https://wordpress.org/support/users/danielhuesken/)
 * (@danielhuesken)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-backwpup-errors-backing-up-database-started-after-latest-upgrade/#post-2986704)
 * Please exclude ‘/homepages/45/d418074915/htdocs/tftp/wp-content/w3tc/objectcache’

Viewing 1 replies (of 1 total)

The topic ‘[Plugin: BackWPup] Errors backing up database, started after latest upgrade’
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 * ![](https://ps.w.org/backwpup/assets/icon-256x256.png?rev=3236141)
 * [BackWPup – WordPress Backup & Restore Plugin](https://wordpress.org/plugins/backwpup/)
 * [Support Threads](https://wordpress.org/support/plugin/backwpup/)
 * [Active Topics](https://wordpress.org/support/plugin/backwpup/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/backwpup/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/backwpup/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Daniel Hüsken](https://wordpress.org/support/users/danielhuesken/)
 * Last activity: [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-backwpup-errors-backing-up-database-started-after-latest-upgrade/#post-2986704)
 * Status: not resolved