# Umbrel 1.0 - Jam app does not open

**URL:** <https://community.umbrel.com/t/umbrel-1-0-jam-app-does-not-open/15700>\
**Category:** Support and Troubleshooting\
**Created:** [March 20, 2024, 11:17pm UTC](https://community.umbrel.com/t/umbrel-1-0-jam-app-does-not-open/15700 "2024-03-20T23:17:59Z")\
**Posts on this page:** 1\
**Showing post:** 29

<div class="post-metadata">

**Author:** ![nmfretz](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.umbrel.com/nmfretz/32/3631_2.png) [@nmfretz](https://community.umbrel.com/u/nmfretz)\
**Post date:** [May 6, 2024, 11:53pm UTC](https://community.umbrel.com/t/umbrel-1-0-jam-app-does-not-open/15700/29 "2024-05-06T23:53:35Z")

</div>

Thanks for stopping by the Github issue everyone! A PR to fix the issue has been opened:

> <https://github.com/joinmarket-webui/jam-docker/pull/124>
>
> Resolves #123.
> 
> Increases the shared memory zone size from 64k to 256k.
> This …should fix problems reported by users on umbrelOS 1.x.

---

_[View the full topic](https://community.umbrel.com/t/umbrel-1-0-jam-app-does-not-open/15700)._