# Errors on updating YH system / apps
**URL:** https://forum.yunohost.org/t/errors-on-updating-yh-system-apps/42751
**Category:** Support
**Tags:** english
**Created:** [August 3, 2026, 9:56am UTC](https://forum.yunohost.org/t/errors-on-updating-yh-system-apps/42751 "2026-08-03T09:56:14Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@BlindFish](https://forum.yunohost.org/u/BlindFish)
#### Post date: [August 3, 2026, 9:56am UTC](https://forum.yunohost.org/t/errors-on-updating-yh-system-apps/42751/1 "2026-08-03T09:56:14Z")
**What type of hardware are you using** : Virtual machine
**What YunoHost version are you running** : 12.1.40.1 stable
**How are you able to access your server** : The webadmin
Direct access via physical keyboard/screen
### Describe your issue
When i try to fetch the list of updates, i get an error message. However, (some) updates are shown afterwards, but when i try to update my apps, more similar error messages are showing up and the system shows unexpected behaviour. For example, retrieving my Vaultwarden vault on chrome runs for an unexpected long time.
### Share relevant logs or error messages
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: [https://dl.yarnpkg.com/debian](https://dl.yarnpkg.com/debian) stable InRelease: The following signatures couldn’t be verified because the public key is not available: NO\_PUBKEY 62D54FD4003F6525
E: Failed to fetch [https://dl.yarnpkg.com/debian/dists/stable/InRelease](https://dl.yarnpkg.com/debian/dists/stable/InRelease) The following signatures couldn’t be verified because the public key is not available: NO\_PUBKEY 62D54FD4003F6525
E: Some index files failed to download. They have been ignored, or old ones used instead.
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### Author:  [@Tho](https://forum.yunohost.org/u/Tho)
#### Post date: [August 3, 2026, 10:15am UTC](https://forum.yunohost.org/t/errors-on-updating-yh-system-apps/42751/2 "2026-08-03T10:15:25Z")
Did you check [Yarn and Sury APT keys issues](https://forum.yunohost.org/t/yarn-and-sury-apt-keys-issues/41617)?
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### Author:  [@BlindFish](https://forum.yunohost.org/u/BlindFish)
#### Post date: [August 3, 2026, 11:42am UTC](https://forum.yunohost.org/t/errors-on-updating-yh-system-apps/42751/3 "2026-08-03T11:42:12Z")
OMG … so sorry. I didn’t actually see this post. Thanks a bunch, this seems to have solved it.
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### Author:  [@system](https://forum.yunohost.org/u/system)
#### Post date: [September 2, 2026, 11:42am UTC](https://forum.yunohost.org/t/errors-on-updating-yh-system-apps/42751/4 "2026-09-02T11:42:32Z")
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