Can't access settings in the Checkout app

[Rihards Gackis]

Hello! JSM Cloud issue here.
I'm having a problem with a Checkout app. A colleague went to a vacation so i was assigned as a project lead to one of her projects which uses Checkout. i can access everything as it is but after i switched back the project lead role back to her, she can't access any of the settings within the Checkout. page stays blank and follows an error :

Something's gone wrong
Our team has been notified. if the problem persists, please contact Atlassian Support

we have equal access to the mentioned project, the thing that broke is was that i switched project lead role back to where it was.

so far i've checked that the issue is not computer/software. used different browsers, have no idea how to pull logs from this.

[Marc - Devoteam]

Hi @Rihards Gackis 

Welcome to the community.

Make sure your app is updated to the latest version.

The problem is typically that there has been a new version out that has not been installed in you instance. Once you install, the problem should go away.

This statement above os from their support page

If that doesn't work, I recommend you to reach out the developer via their support portal.

https://mumosystems.atlassian.net/servicedesk/customer/portal/22