# Error while installing backup **URL:** https://meta.discourse.org/t/error-while-installing-backup/190247 **Category:** Support **Created:** [May 12, 2021, 9:28pm UTC](https://meta.discourse.org/t/error-while-installing-backup/190247 "2021-05-12T21:28:25Z") **Posts on this page:** 3 **Page:** 1
### Author: ![DursunCan](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/dursuncan/32/204976_2.png) [@DursunCan](https://meta.discourse.org/u/DursunCan) #### Post date: [May 12, 2021, 9:28pm UTC](https://meta.discourse.org/t/error-while-installing-backup/190247/1 "2021-05-12T21:28:25Z")
I formatted the virtual server. I set up the site from zero. It gives this error while installing backup. I had a backup on the beta9 version. I’m using the beta9 version on the new site. I had installed different extensions on the old site. In the new site, the same extensions are not loaded. Could the problem be caused by the extension not being loaded? ```plaintext [2021-05-12 17:54:38] [STARTED] [2021-05-12 17:54:38] 'dursuncan' has started the restore! [2021-05-12 17:54:38] Marking restore as running... [2021-05-12 17:54:38] Making sure /var/www/discourse/tmp/restores/default/2021-05-12-175438 exists... [2021-05-12 17:54:38] Copying archive to tmp directory... [2021-05-12 17:54:38] Unzipping archive, this may take a while... [2021-05-12 17:54:38] Extracting dump file... [2021-05-12 17:54:39] Validating metadata... [2021-05-12 17:54:39] Current version: 20210420015635 [2021-05-12 17:54:39] Restored version: 20210429154322 [2021-05-12 17:54:39] EXCEPTION: You're trying to restore a more recent version of the schema. You should migrate first! [2021-05-12 17:54:39] /var/www/discourse/lib/backup_restore/meta_data_handler.rb:31:in `validate' /var/www/discourse/lib/backup_restore/restorer.rb:113:in `validate_backup_metadata' /var/www/discourse/lib/backup_restore/restorer.rb:43:in `run' /var/www/discourse/script/spawn_backup_restore.rb:23:in `restore' /var/www/discourse/script/spawn_backup_restore.rb:36:in `block in
' /var/www/discourse/script/spawn_backup_restore.rb:4:in `fork' /var/www/discourse/script/spawn_backup_restore.rb:4:in `
' [2021-05-12 17:54:39] Trying to rollback... [2021-05-12 17:54:39] There was no need to rollback [2021-05-12 17:54:39] Cleaning stuff up... [2021-05-12 17:54:39] Removing tmp '/var/www/discourse/tmp/restores/default/2021-05-12-175438' directory... [2021-05-12 17:54:39] Marking restore as finished... [2021-05-12 17:54:39] Notifying 'dursuncan' of the end of the restore... ``` ---
### Author: ![gerhard](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/gerhard/32/119479_2.png) [@gerhard](https://meta.discourse.org/u/gerhard) #### Post date: [May 12, 2021, 9:41pm UTC](https://meta.discourse.org/t/error-while-installing-backup/190247/2 "2021-05-12T21:41:30Z")
> [@DursunCan](#): > > Could the problem be caused by the extension not being loaded? Yes, please add the missing plugins or replace `20210429154322` with `20210420015635` in the backup filename if you don’t want to use those plugins anymore. ---
### Author: ![system](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/system/32/443519_2.png) [@system](https://meta.discourse.org/u/system) #### Post date: [June 11, 2021, 9:41pm UTC](https://meta.discourse.org/t/error-while-installing-backup/190247/3 "2021-06-11T21:41:52Z")
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