# Can't generate user avatars when moving to new server because extension is "unknown"

**URL:** <https://meta.discourse.org/t/cant-generate-user-avatars-when-moving-to-new-server-because-extension-is-unknown/207134>\
**Category:** Bug\
**Created:** [October 26, 2021, 2:35pm UTC](https://meta.discourse.org/t/cant-generate-user-avatars-when-moving-to-new-server-because-extension-is-unknown/207134 "2021-10-26T14:35:36Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![codinghorror](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/codinghorror/32/110067_2.png) [@codinghorror](https://meta.discourse.org/u/codinghorror)\
**Post date:** [November 14, 2021, 5:37am UTC](https://meta.discourse.org/t/cant-generate-user-avatars-when-moving-to-new-server-because-extension-is-unknown/207134/11 "2021-11-14T05:37:25Z")

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> I moved a site from `/community` to `community.example.com` by doing a backup and restore

I guess we just haven’t run into this with any of our restores, because what you’re complaining about here are restore artifacts, yes? Perhaps specific to this backup and restore?

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