Hi all,
Today opening any of the kanban board in our Jira Server it appears the following error

This error appears for every user that opens a kanban board, but the issues are showed on the kanban.
I do not know if it can be related, but here more info:
1. The error about the kanban board shows up only in our non-production environment
2. Searching on Atlassian Support, I found that similar issues can be caused by add-ons, but if I enter into the "manage apps" page, it appears the error that Jira could not connect to Jira Market Place.
Despite point 1 occurs only in our non-production environment, the connection error to Jira Marketplace shows up on our production environment too.
Thank you,
Gianni