# MacOS Error code 402 - New peptide programs not showing after update

**URL:** <https://forum.ahaharmony.com/t/macos-error-code-402-new-peptide-programs-not-showing-after-update/3372>\
**Category:** General\
**Created:** [April 14, 2026, 9:05pm UTC](https://forum.ahaharmony.com/t/macos-error-code-402-new-peptide-programs-not-showing-after-update/3372 "2026-04-14T21:05:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![AhaSu](https://avatars.discourse-cdn.com/v4/letter/a/a5b964/32.png) [@AhaSu](https://forum.ahaharmony.com/u/AhaSu)\
**Post date:** [April 14, 2026, 9:05pm UTC](https://forum.ahaharmony.com/t/macos-error-code-402-new-peptide-programs-not-showing-after-update/3372/1 "2026-04-14T21:05:55Z")

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Need some help with this error message received after updating the software today 4-14-26. The three new peptides were not shown after my update. Can you help? Using MacOS

Thank you

An exception of type HarmonyAPIException with error code 402 has occurred at HarmonyAPI.

program\_library  
The key has expired.

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**Author:** ![JMR24](https://avatars.discourse-cdn.com/v4/letter/j/d26b3c/32.png) [@JMR24](https://forum.ahaharmony.com/u/JMR24)\
**Post date:** [April 14, 2026, 9:38pm UTC](https://forum.ahaharmony.com/t/macos-error-code-402-new-peptide-programs-not-showing-after-update/3372/2 "2026-04-14T21:38:26Z")

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The same error in Windows 11

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<div class="post-metadata">

**Author:** ![EricLim](https://avatars.discourse-cdn.com/v4/letter/e/da6949/32.png) [@EricLim](https://forum.ahaharmony.com/u/EricLim)\
**Post date:** [April 14, 2026, 10:45pm UTC](https://forum.ahaharmony.com/t/macos-error-code-402-new-peptide-programs-not-showing-after-update/3372/3 "2026-04-14T22:45:11Z")

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mine also, please help Thank you (window 10)

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**Author:** ![ahaharmonyofficial](https://avatars.discourse-cdn.com/v4/letter/a/b9e5f3/32.png) [@ahaharmonyofficial](https://forum.ahaharmony.com/u/ahaharmonyofficial)\
**Post date:** [April 15, 2026, 9:27am UTC](https://forum.ahaharmony.com/t/macos-error-code-402-new-peptide-programs-not-showing-after-update/3372/4 "2026-04-15T09:27:05Z")

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Hi, sorry about that.

This kind of message can sometimes happen when the button is clicked multiple times within a short period. Please try clicking Option + Software Update only once, then wait a little while for the software to fully respond before clicking anything again.