Error connecting to Jira with Mattermost plugin

[rancid]

I've installed mattermost plugin (the latest: 1.0) as showed in the video here: https://mattermost.com/atlassian/jira/

Mattemost (ubuntu installation in a private server) is updated al last version as well.

The plugin in Jira cloud is installed, but the procedure doesn't works when I try to connect mattemost to Jira cloud. The Jira page, where I should have the button where I should approve the connection from mattermost to my Jira account, after a long load, doesn't works and a message appears: "Something's gone wrong. Our team has been notified. If the problem persists, please contact Atlassian Support.".

It seems like the Jira page doesn't exists.

I verified that connection in mattermost is not established with command "/jira info".

Thank you for your support.

[Frédéric]

Same problem