# PHP/Openssl issue with Backup kicking off **URL:** \ **Category:** ℹ️ Support\ **Tags:** backup-app\ **Created:** [May 5, 2022, 12:05pm UTC](https://help.nextcloud.com/t/php-openssl-issue-with-backup-kicking-off/138618 "2022-05-05T12:05:19Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![jet438](https://help.nextcloud.com/user_avatar/help.nextcloud.com/jet438/32/64844_2.png) [@jet438](https://help.nextcloud.com/u/jet438)\ **Post date:** [May 5, 2022, 12:05pm UTC](https://help.nextcloud.com/t/php-openssl-issue-with-backup-kicking-off/138618/1 "2022-05-05T12:05:19Z")
I downloaded and setup Backup. it ran once but now I’m getting an error message in the log. Error: openssl\_encrypt(): IV passed is only 12 bytes long, cipher expects an IV of precisely 16 bytes, padding with \0 at /var/www/nextcloud/apps/backup/lib/Service/EncryptService.php#210 So the simple question is: What is the error and how do I correct it? Thanks for the help in advance ---
**Author:** ![anon75456558](https://help.nextcloud.com/letter_avatar/anon75456558/32/5_5575768a8748004e209b776fc1b2916d.png) [@anon75456558](https://help.nextcloud.com/u/anon75456558)\ **Post date:** [May 5, 2022, 2:17pm UTC](https://help.nextcloud.com/t/php-openssl-issue-with-backup-kicking-off/138618/2 "2022-05-05T14:17:50Z")
Here is the bug report > > > Hi there, > while packing the first pass of a backup the this error occured: > \`SQ…LSTATE\[HY000\]: General error: 2006 MySQL server has gone away\` > > Here is the output: > \`\`\`Packing Restoring Point 20220118081516-full-QfaWrKt6yed4yez > \> lock and set status to processing > \> Browsing RestoringData data > \> Packing RestoringChunk data-bf2cdafb-eae0-4cf0-b1e6-a69f5d4d4779: proceeding > \* copying chunk to temp file /tmp/php9gg35M: ok > \* compressing /tmp/php9gg35M: /tmp/phpMLuaPP > \* spliting /tmp/phpMLuaPP in parts: 32 part(s) > \* encrypting each part > . encrypting /tmp/phpi8mBuO: /tmp/phpiG1hRM, aes-256-cbc > . encrypting /tmp/php6u0maQ: /tmp/phpB2E8hO, aes-256-cbc > . encrypting /tmp/phpGKmVlM: /tmp/php39ZUfO, aes-256-cbc > . encrypting /tmp/phpf7rE8P: /tmp/phpSkemtP, aes-256-cbc > . encrypting /tmp/php8jYzsN: /tmp/php3fXmnM, aes-256-cbc > . encrypting /tmp/php7w7bUM: /tmp/phpVU7AoP, aes-256-cbc > . encrypting /tmp/php06qpFO: /tmp/phpZqtStP, aes-256-cbc > . encrypting /tmp/phplzYEfP: /tmp/phpaLDYSO, aes-256-cbc > . encrypting /tmp/phpJRY3xM: /tmp/phpY1xOlN, aes-256-cbc > . encrypting /tmp/phpj9yKNP: /tmp/phptla2lP, aes-256-cbc > . encrypting /tmp/phpQBpiJL: /tmp/phpEO10QM, aes-256-cbc > . encrypting /tmp/php0t3kVP: /tmp/phpYQsfCL, aes-256-cbc > . encrypting /tmp/phpsVsEBP: /tmp/phpKBKW7P, aes-256-cbc > . encrypting /tmp/php4pXWjM: /tmp/phpTY6qwL, aes-256-cbc > . encrypting /tmp/phpt22WAL: /tmp/phpiy6oVO, aes-256-cbc > . encrypting /tmp/phpjGvpYO: /tmp/phprc9L9O, aes-256-cbc > . encrypting /tmp/php0Fw5xL: /tmp/phpCDxVEP, aes-256-cbc > . encrypting /tmp/phpSl1uMM: /tmp/phpF9ZFfP, aes-256-cbc > . encrypting /tmp/phpsg1rtM: /tmp/phpkSgxYN, aes-256-cbc > . encrypting /tmp/phpktmRBO: /tmp/phpZk0K0O, aes-256-cbc > . encrypting /tmp/phpWRDpzL: /tmp/php0twgnP, aes-256-cbc > . encrypting /tmp/phpIzU2IN: /tmp/phpJqT6GL, aes-256-cbc > . encrypting /tmp/phphYsfLO: /tmp/phpN1u94L, aes-256-cbc > . encrypting /tmp/phpOEmhWN: /tmp/phpUbpnPP, aes-256-cbc > . encrypting /tmp/phpoCtptM: /tmp/phpKohG0L, aes-256-cbc > . encrypting /tmp/phpil2hJL: /tmp/phpyP8GrO, aes-256-cbc > . encrypting /tmp/phpq0IzEN: /tmp/phpg5HczM, aes-256-cbc > . encrypting /tmp/phpa3DksN: /tmp/php26W6wM, aes-256-cbc > . encrypting /tmp/phpDuq2hO: /tmp/phpYAE3WP, aes-256-cbc > . encrypting /tmp/phpbf54xP: /tmp/phpEUb2pN, aes-256-cbc > . encrypting /tmp/php5HrT5N: /tmp/phpzLxYnM, aes-256-cbc > . encrypting /tmp/phpZvrgeM: /tmp/phpMCzXsO, aes-256-cbc > - storing parts in appdata .fail An exception occurred while executing a query: SQLSTATE\[HY000\]: General error: 2006 MySQL server has gone away > > In PackService.php line 210: > > issue on chunk data-bf2cdafb-eae0-4cf0-b1e6-a69f5d4d4779 - An exception occurred while executing a query: SQLSTATE\[HY000\]: General error: 2006 MySQL server has gone away > > > backup:point:pack \[--output \[OUTPUT\]\] \[--generate-log\] \[--\] \ > \`\`\` > > The creation was successfully. > Using NC 23.0.0.10 and Backup 1.0.4 > > \*\*EDIT:\*\* > the generted log: > > \`\`\[PHP\] Fehler: openssl\_encrypt(): IV passed is only 12 bytes long, cipher expects an IV of precisely 16 bytes, padding with \\0 at nextcloud/apps/backup/lib/Service/EncryptService.php#211 > \`\` > This Error occures several times Seems that is a bug report. Found this. > ---
**Author:** ![jet438](https://help.nextcloud.com/user_avatar/help.nextcloud.com/jet438/32/64844_2.png) [@jet438](https://help.nextcloud.com/u/jet438)\ **Post date:** [May 5, 2022, 3:14pm UTC](https://help.nextcloud.com/t/php-openssl-issue-with-backup-kicking-off/138618/3 "2022-05-05T15:14:22Z")
Ok. So it sounds like a bug that the author of the app needs to work out. Certainly doesn’t look like anything I can fix. Thanks for the quick reply. ---
**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 13, 2024, 2:12pm UTC](https://help.nextcloud.com/t/php-openssl-issue-with-backup-kicking-off/138618/4 "2024-12-13T14:12:26Z")