Summary

Upon trying to create any spaces, an error is displayed:

"We can't create that blueprint right now."

Diagnosis

• By inspecting the browser's console while facing the issue (I.E. in Google Chrome, right-click > Inspect element > Network), there is a 500 in the request to create a space:

Request URL: https://veridiumid.atlassian.net/wiki/rest/create-dialog/1.0/space-blueprint/create-space?favorite=trueRequest 
Method: POST
Status Code: 500 Cause 

• On the Response tab, a message states the following:

errorCode": 500,
"errorType": "UNKNOWN"
"errorMessage": "Transaction rolled back because it has been marked as rollback-only" 

Cause

There are apps that have been deprecated and are blocking the space's creation due to how the permission for new spaces interact with them. The following apps are the cause of the issue:

1. Any.do for Confluence
2. Atlassian Cards for Confluence.
3. Confluence Property Tool
4. Confluence universal importer

Solution

Uninstall all or any of the above apps with the following steps:

1. As an administrator of Confluence, tap the gear icon at the top-right.
2. On Confluence's administration, select the Manage apps option from the sidebar.
3. Tap the app and then, the Uninstall button under the app details.

 Once this is done, refresh the page and try to create a new space again.