# Need help recovering data **URL:** \ **Category:** ℹ️ Support\ **Tags:** nc22, encryption-server\ **Created:** [September 29, 2021, 7:33am UTC](https://help.nextcloud.com/t/need-help-recovering-data/124478 "2021-09-29T07:33:41Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Clara\_Crazy](https://help.nextcloud.com/letter_avatar/clara_crazy/32/5_5575768a8748004e209b776fc1b2916d.png) [@Clara\_Crazy](https://help.nextcloud.com/u/Clara_Crazy)\ **Post date:** [September 29, 2021, 7:33am UTC](https://help.nextcloud.com/t/need-help-recovering-data/124478/1 "2021-09-29T07:33:42Z")
Nextcloud version _(eg, 20.0.5)_: `22.1.1` Operating system and version _(eg, Ubuntu 20.04)_: `Ubuntu 20.04` Apache or nginx version _(eg, Apache 2.4.25)_: `Apache 2.4.41` PHP version _(eg, 7.4)_: `7.3` Hey guys. So im in a problematic situation right now. After a series of unlucky events I lost my nextcloud database and the backup of it. I still have all the data + the encryption keys however im unable to get the data working again. Another thread with the same issue said that after a clean install and re-creating the accounts with the exact same name etc. I can just add the files and keys back, runn occ:scan and it would work again but thats not the case. After doing said steps the files did appear again however they were unreadable by the User. I really need help getting the data back. I have the entire data directory so please let me know how I can fix this issue! The output of your Nextcloud log in **Admin \> Logging** : ```auto [PHP] Error: imagecreatefromstring(): Empty string or invalid image at /var/www/nextcloud/lib/private/legacy/OC_Image.php#652 GET /core/preview?fileId=521&x=1360&y=768&a=true from IP by CynthiaAI at 2021-09-29T07:25:00+00:00 [PHP] Error: file_get_contents(/var/www/nextcloud-data/CynthiaAI/files/tmp/oc_tmp_hKuD1l): failed to open stream: No such file or directory at /var/www/nextcloud/lib/private/Files/Storage/Local.php#277 GET /core/preview?fileId=521&x=1360&y=768&a=true from IP by CynthiaAI at 2021-09-29T07:25:00+00:00 ``` The output of your config.php file in `/path/to/nextcloud` (make sure you remove any identifiable information!): ```auto '[REDACTED]', 'passwordsalt' => '[REDACTED]', 'secret' => '[REDACTED]', 'trusted_domains' => array ( 0 => 'cloud.cynthiaai.de', ), 'datadirectory' => '/var/www/nextcloud-data/', 'dbtype' => 'mysql', 'version' => '22.1.1.2', 'overwrite.cli.url' => 'http://cloud.cynthiaai.de', 'dbname' => 'nextcloud', 'dbhost' => 'localhost', 'dbport' => '', 'dbtableprefix' => 'oc_', 'mysql.utf8mb4' => true, 'dbuser' => '[REDACTED]', 'dbpassword' => '[REDACTED]', 'installed' => true, 'memcache.distributed' => '\\OC\\Memcache\\Redis', 'memcache.local' => '\\OC\\Memcache\\Redis', 'memcache.locking' => '\\OC\\Memcache\\Redis', 'htaccess.RewriteBase' => '/', 'integrity.check.disabled' => true, 'default_phone_region' => 'DE', 'auth.webauthn.enabled' => false, 'enable_previews' => true, 'enabledPreviewProviders' => array ( 0 => 'OC\\Preview\\Image', 1 => 'OC\\Preview\\Movie', 2 => 'OC\\Preview\\TXT', 3 => 'OC\\Preview\\MP3', 4 => 'OC\\Preview\\MKV', 5 => 'OC\\Preview\\MP4', 6 => 'OC\\Preview\\AVI', ), 'app_install_overwrite' => array ( 0 => 'occweb', 1 => 'dropit', 2 => 'end_to_end_encryption', 3 => 'drop_account', 4 => 'emlviewer', 5 => 'epubreader', 6 => 'limit_login_to_ip', 7 => 'nextbackup', 8 => 'socialsharing_email', 9 => 'socialsharing_facebook', 10 => 'socialsharing_twitter', 11 => 'socialsharing_diaspora', 12 => 'hsts', ), 'maintenance' => false, 'path' => '', 'ncd_yt_binary' => '/usr/local/bin/youtube-dl', 'ncd_aria2_binary' => '/usr/bin/aria2c', ); ``` The output of your Apache/nginx/system log in `/var/log/ ____ `: ```auto ./. ``` Really dont know what to do so please let me know! ---
**Author:** ![tflidd](https://help.nextcloud.com/letter_avatar/tflidd/32/5_5575768a8748004e209b776fc1b2916d.png) [@tflidd](https://help.nextcloud.com/u/tflidd)\ **Post date:** [September 29, 2021, 2:45pm UTC](https://help.nextcloud.com/t/need-help-recovering-data/124478/2 "2021-09-29T14:45:32Z")
Encryption makes this part a bit difficult, there are a few topics around that: > [@Decrypt encrypted datas.. Need your help!.. (Without database)](https://help.nextcloud.com/t/decrypt-encrypted-datas-need-your-help-without-database/7275): > > Hey dear nextcloud Support and other helpers!! I’m in big trouble… I reinstall my Server and install nextcloud v11. I import my data folder, themes folder and the config folder, but now I have seen, I forgott to backup my database. Now my question… How can I decrypt my files without database? Befor reinstall I was on nextcloud v10. I try since ~2 Days and I can’t fix my problem… Can anyone help me? (occ can’t decrypt it, everytime it says: Files for following users couldn't be decrypted, mayb… And someone implemented a recovery tool: > **[GitHub - syseleven/nextcloud-tools: This project contains tools to operate...](https://github.com/syseleven/nextcloud-tools)** > > This project contains tools to operate Nextcloud. Contribute to syseleven/nextcloud-tools development by creating an account on GitHub. ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 14, 2024, 3:20pm UTC](https://help.nextcloud.com/t/need-help-recovering-data/124478/3 "2024-12-14T15:20:19Z")
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**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 14, 2024, 3:20pm UTC](https://help.nextcloud.com/t/need-help-recovering-data/124478/4 "2024-12-14T15:20:20Z")