Title: PHP Fatal error (Error)
Last modified: July 12, 2018

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# PHP Fatal error (Error)

 *  Resolved [sallystrand](https://wordpress.org/support/users/sallystrand/)
 * (@sallystrand)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/php-fatal-error-error/)
 * I am not able to complete a backup of my site, the Current Backup page shows 
   links to info about site not getting enough visitors. It doesn’t, but the “now”
   option is not creating a full backup even with repeated refresh. Is the is a 
   visitor issue or as the error log calls it:
    0331.943 (1) PHP Fatal error (Error)
   has occurred. Error Message: Undefined class constant ‘API_URL’ (Code: 0, line
   84 in /services/webpages/util/2/a/2abo3pxk2.site.aplus.net/sally-strand.com/public/
   wp-content/plugins/updraftplus/includes/Dropbox2/OAuth/Consumer/ConsumerAbstract.
   php) 0331.945 (1) An error condition has occurred for the first time during this
   job
 * I’m using APlus Hosting
    -  This topic was modified 7 years, 11 months ago by [sallystrand](https://wordpress.org/support/users/sallystrand/).
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fphp-fatal-error-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Contributor [bcrodua](https://wordpress.org/support/users/bcrodua/)
 * (@bcrodua)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/php-fatal-error-error/#post-10491579)
 * Hi Sally,
 * To help us resolve the issue, please could you send us full copy of the backup
   log? This can be found in the UpdraftPlus Existing Backups tab.
 * The contents will be too long to post here directly, but you can use an online
   service such as Dropbox or Pastebin, and post the link here.
 * Best Wishes,
    Bryle
 *  Plugin Author [David Anderson / Team Updraft](https://wordpress.org/support/users/davidanderson/)
 * (@davidanderson)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/php-fatal-error-error/#post-10494173)
 * Hi Sally,
 * Looking at the part of the code that this comes from indicates that a Dropbox
   API v1 token is being upgraded to an API v2 token. That is strange, as Dropbox
   killed off API v1 last year; and UpdraftPlus was ready for that around 18 months
   ago. Have you just updated from a very old UpdraftPlus version?
 * I can’t directly test, because of those factors, but I believe that the error
   will go away if you go to the Dropbox settings section within UpdraftPlus’s settings,
   and follow the link to re-authorise. If that does not work, then go into the ‘
   Advanced Tools’ tab, use the ‘Wipe Settings’ facility, and then re-configure 
   UpdraftPlus.
 * David

Viewing 2 replies - 1 through 2 (of 2 total)

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## Tags

 * [PHP Fatal error](https://wordpress.org/support/topic-tag/php-fatal-error/)

 * 2 replies
 * 3 participants
 * Last reply from: [David Anderson / Team Updraft](https://wordpress.org/support/users/davidanderson/)
 * Last activity: [7 years, 11 months ago](https://wordpress.org/support/topic/php-fatal-error-error/#post-10494173)
 * Status: resolved