# 업그레이드 페이지에서 내부 서버 오류 발생

**URL:** https://meta.discourse.org/t/internal-server-error-on-upgrade-page/274331
**Category:** Support
**Created:** [8월 8, 2023, 11:14오전 UTC](https://meta.discourse.org/t/internal-server-error-on-upgrade-page/274331 "2023-08-08T11:14:28Z")
**Posts on this page:** 1
**Showing post:** 9

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### Author: ![david](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/david/32/157490_2.png) [@david](https://meta.discourse.org/u/david)
#### Post date: [8월 10, 2023, 4:22오후 UTC](https://meta.discourse.org/t/internal-server-error-on-upgrade-page/274331/9 "2023-08-10T16:22:02Z")

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3개의 게시물이 새로운 주제로 분리되었습니다: [Undefined method `sub!' when visiting `/admin/upgrade`](https://meta.discourse.org/t/undefined-method-sub-when-visiting-admin-upgrade/274682)

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_[View the full topic](https://meta.discourse.org/t/internal-server-error-on-upgrade-page/274331)._