Title: Installation Backwpup Error
Last modified: May 17, 2018

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# Installation Backwpup Error

 *  Resolved [rvargas](https://wordpress.org/support/users/rvargas/)
 * (@rvargas)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/installation-backwpup-error/)
 * Parse error: syntax error, unexpected ‘[‘, expecting ‘)’ in /home/content/84/
   10319384/html/wp-content/plugins/backwpup/vendor/guzzlehttp/promises/src/functions.
   php on line 45
 * This is the error when I try to activate the plugin in our website.
 * Any fix?
 * RV
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Finstallation-backwpup-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 12 replies - 1 through 12 (of 12 total)

 *  [happyAnt](https://wordpress.org/support/users/duongcuong96/)
 * (@duongcuong96)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10292004)
 * [@rvargas](https://wordpress.org/support/users/rvargas/)
    the problem because
   of we suddenly upgrade GuzzleHttp to a newer version that dropped support for
   5.4 🙁
 * Sorry, but we currently try to fix it and going to release the new fixed version
   as soon as possible, really sorry for any problem happens to you 🙁
 * For a temporary fix,Please login to FTP and then delete the **backwpup** folder
   at your **wp-content/plugins**, after that, you can install the older version
   of BWP from the zip file in here: [https://downloads.wordpress.org/plugin/backwpup.3.4.5.zip](https://downloads.wordpress.org/plugin/backwpup.3.4.5.zip)
 * Or better, tell your hoster to upgrade PHP version to 5.6 or 7.0.
 * Sorry again for all the troubles you got 🙁
 *  Thread Starter [rvargas](https://wordpress.org/support/users/rvargas/)
 * (@rvargas)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10292066)
 * It works!,
 * Thank You so Much..
 * Hoping can fix the issue soon
 * Best Regards,
 *  [abdulkadhar](https://wordpress.org/support/users/abdulkadhar/)
 * (@abdulkadhar)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10306610)
 * It working. Thanks
    -  This reply was modified 8 years, 1 month ago by [abdulkadhar](https://wordpress.org/support/users/abdulkadhar/).
 *  [designqvist](https://wordpress.org/support/users/designqvist/)
 * (@designqvist)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10309259)
 * Hi [@duongcuong96](https://wordpress.org/support/users/duongcuong96/),
 * I’ve got a pretty similar problem: I installed the latest update of the Backwpup-
   Plugin and received the notice
 * Parse error: syntax error, unexpected ‘[‘, expecting ‘)’ in /home/de001rz4/www/
   home/wp-content/plugins/backwpup/vendor/guzzlehttp/promises/src/functions.php
   on line 45
 * and now my website is vanished – all there is left when I want to open my website
   or any of its sites is this notice above. How can I fix this? Or is it going 
   to work the moment you’ve fixed and released your new version? When will that
   be?
 * Thanx S
 *  [happyAnt](https://wordpress.org/support/users/duongcuong96/)
 * (@duongcuong96)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10309273)
 * [@designqvist](https://wordpress.org/support/users/designqvist/)
    the problem
   because of we suddenly upgrade GuzzleHttp to a newer version that dropped support
   for 5.4 🙁
 * Sorry, but we currently try to fix it and going to release the new fixed version
   as soon as possible, really sorry for any problem happens to you 🙁
 * For a temporary fix, Please install a plugin called WP Rollback([https://wordpress.org/plugins/wp-rollback/](https://wordpress.org/plugins/wp-rollback/)),
   after that, go to plugin list -> find BackWPUp and press Roll back to the 3.4.5
   version
 * Or better, tell your hoster to upgrade PHP version to 5.6 or 7.0.
 * Sorry again for all the troubles you got 🙁
 *  [designqvist](https://wordpress.org/support/users/designqvist/)
 * (@designqvist)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10309300)
 * [@duongcuong96](https://wordpress.org/support/users/duongcuong96/)
 * As I can’t open my website, not as admin either, I can’t install any plugin suggested
   by you, that’s the problem.
 * Hope you’ll fix this soon, it’s no good running a shop without a working website.
 * Best, S
 *  [happyAnt](https://wordpress.org/support/users/duongcuong96/)
 * (@duongcuong96)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10309408)
 * [@designqvist](https://wordpress.org/support/users/designqvist/)
    just contact
   your hoster and tell them to upgrade your PHP version to 5.6 or 7.0 will fix 
   the problem. thank you!
 *  [designqvist](https://wordpress.org/support/users/designqvist/)
 * (@designqvist)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10313337)
 * Hi [@duongcuong96](https://wordpress.org/support/users/duongcuong96/)
 * so if I upgrade
    php phtml php3 php4 php5 to “5.6 latest GnuTLS” the problem 
   will be solved? Or is it only necessary to change the .php setting and leave 
   the other ph… as they are (“5.3.latest GnuTLS”)?
 * Thanx S
 *  [designqvist](https://wordpress.org/support/users/designqvist/)
 * (@designqvist)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10314343)
 * Hi again [@duongcuong96](https://wordpress.org/support/users/duongcuong96/),
 * I have tried out all of the suggested PHP-versions offered by my webhost (5.6
   and 7.0, both as GnuTLS and OpenSSL version), with more than one hour between
   each try: So far no change, the problem is still there.
 * Any further hints or ideas how I could solve the problem?
 * Best, S
 *  [designqvist](https://wordpress.org/support/users/designqvist/)
 * (@designqvist)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10314638)
 * [@duongcuong96](https://wordpress.org/support/users/duongcuong96/)
 * I found out that I’d have to establish an FTP connection which I did. Luckily
   I found a very helpful tutorial: [https://wpshout.com/quick-guides/how-to-use-ftp-to-deactivate-a-plugin-thats-breaking-your-wordpress-site/](https://wpshout.com/quick-guides/how-to-use-ftp-to-deactivate-a-plugin-thats-breaking-your-wordpress-site/)
 * I followed the instructions, renamed the backwpup file (in wp-content) and now
   my website is back again.
 * This will be enough for today, tomorrow I’ll have to re-install an older version
   of your backwpup plugin.
 * Best, S
 *  [happyAnt](https://wordpress.org/support/users/duongcuong96/)
 * (@duongcuong96)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10314674)
 * [@designqvist](https://wordpress.org/support/users/designqvist/)
    in the next
   few hours, the 3.5.1 will be released with all issues got fixed. Please update
   as soon as you can. Thank you!
 *  [designqvist](https://wordpress.org/support/users/designqvist/)
 * (@designqvist)
 * [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10324413)
 * Hi [@duongcuong96](https://wordpress.org/support/users/duongcuong96/)
 * before I update to 3.4.5 I absolutely want to make a backup with the now via 
   rollback again working older version. The backup of the uploads seemed to work
   well, not so the backup of the Basic-Structure (WordPress, Plugins, database,
   no uploads) – I always receive this notice:
 * ERROR: mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication.
   Please use an administration tool to reset your password with the command SET
   PASSWORD = PASSWORD(‘your_existing_password’). This will store a new, and more
   secure, hash value in mysql.user. If this user is used in other scripts executed
   by PHP 5.2 or earlier you might need to remove the old-passwords flag from your
   my.cnf file
 * How can I fix that? Where and how do I change which password? Have no clue at
   all…
 * Thanx S

Viewing 12 replies - 1 through 12 (of 12 total)

The topic ‘Installation Backwpup Error’ is closed to new replies.

 * ![](https://ps.w.org/backwpup/assets/icon-256x256.png?rev=3236141)
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 * 12 replies
 * 4 participants
 * Last reply from: [designqvist](https://wordpress.org/support/users/designqvist/)
 * Last activity: [8 years ago](https://wordpress.org/support/topic/installation-backwpup-error/#post-10324413)
 * Status: resolved