Title: Upload Error
Last modified: September 28, 2022

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# Upload Error

 *  Resolved [chrisrohrer](https://wordpress.org/support/users/chrisrohrer/)
 * (@chrisrohrer)
 * [4 years ago](https://wordpress.org/support/topic/upload-error-48/)
 * I’ve started using WPvivid to backup client websites and it has worked on most.
   The largest website, however, shows the following error message after uploading
   the backup .zip files to my local WordPress installation:
 * “Failed to scan 1 backup zips, the zips can be corrupted during creation or download
   process. Please check the zips.”
 * I went back and looked at the export log, which ended with the following:
    [2022-
   09-28 12:11:18][notice]Backup completed. [2022-09-28 12:11:18][notice]Backup 
   succeeded.
 * I’ve been able to download all files without issue and can’t figure out which
   is causing the problem. Even with the error message, my local installation shows
   the “Uploaded Backup” and is able to restore with “Restore completed successfully.”
 * However, WordPress prompts “Database Update Required” right after which ends 
   with the following errors:
 *     ```
       WordPress database error: [Table '[mydomain].wp_categories' doesn't exist]
       SELECT cat_ID, cat_name, category_nicename FROM wp_categories
   
       WordPress database error: [Table '[mydomain].wp_post2cat' doesn't exist]
       SELECT DISTINCT post_id FROM wp_post2cat
   
       WordPress database error: [Unknown column 'post_category' in 'field list']
       SELECT ID, post_category FROM wp_posts WHERE post_category != '0'
   
       WordPress database error: [Table '[mydomain].wp_categories' doesn't exist]
       ALTER TABLE <code>wp_categories</code> ADD INDEX ( <code>category_nicename</code> )
   
       WordPress database error: [Key column 'link_category' doesn't exist in table]
       ALTER TABLE <code>wp_links</code> ADD INDEX ( <code>link_category</code> )
   
       WordPress database error: [Unknown column 'user_nickname' in 'field list']
       SELECT ID, user_nickname, user_nicename FROM wp_users
   
       WordPress database error: [Table '[mydomain].wp_categories' doesn't exist]
       SELECT * FROM wp_categories ORDER BY cat_ID
   
       WordPress database error: [Table '[mydomain].wp_post2cat' doesn't exist]
       SELECT post_id, category_id FROM wp_post2cat GROUP BY post_id, category_id
   
       WordPress database error: [Table '[mydomain].wp_linkcategories' doesn't exist]
       SELECT cat_id, cat_name FROM wp_linkcategories
   
       WordPress database error: [Unknown column 'link_category' in 'field list']
       SELECT link_id, link_category FROM wp_links
       ```
   
 * After that, I am not able to log in to the website. I can access /wp-login.php
   and it will show that my user exists, but the password (which I still use on 
   my live site) isn’t being accepted. On the frontend, I can see that some/most
   of the posts have been inserted, but the theme and styles are not working and
   it is simply using the 2022 theme.
 * Any help is appreciated.

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

 *  Plugin Support [tonyrobins](https://wordpress.org/support/users/tonyrobins/)
 * (@tonyrobins)
 * [4 years ago](https://wordpress.org/support/topic/upload-error-48/#post-16051767)
 * Hello [@chrisrohrer](https://wordpress.org/support/users/chrisrohrer/)
 * Our guess is that the backup zips got corrupted during the downlead process. 
   So, it is recommended that you try the following steps:
 * 1. Download the backup again from the source site.
    2. Once downloaded, on your
   computer, double click on the zips and see whether you will see a ‘corruption
   error’ 3. If the backup zips can be opened without any errors, then upload it
   to the destination site again and restore. 4. If the backup zips cannot be opened
   with a ‘corruption error’, use file manager or FTP to download the zips from 
   the wp-content/wpvividbackups folder of the source site, and see if it works.
 * If the issue persists, then on the source site, check and make sure the available
   web disk space is at least twice of the site size. Then make a new backup and
   download it again.
 * All the best,
 *  Plugin Support [tonyrobins](https://wordpress.org/support/users/tonyrobins/)
 * (@tonyrobins)
 * [4 years ago](https://wordpress.org/support/topic/upload-error-48/#post-16081278)
 * Hi there,
 * Since we haven’t heard from you for a while, I am going to mark the thread as
   resolved.
 * Please feel free to let us know if you need any further assistance.
 * All the best,

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

 The topic ‘Upload Error’ is closed to new replies.

 * ![](https://ps.w.org/wpvivid-backuprestore/assets/icon-256x256.png?rev=2899202)
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 * 2 replies
 * 2 participants
 * Last reply from: [tonyrobins](https://wordpress.org/support/users/tonyrobins/)
 * Last activity: [4 years ago](https://wordpress.org/support/topic/upload-error-48/#post-16081278)
 * Status: resolved