Problem
You are seeing this:
---------- ERROR ----------
ERROR creating space: "Oops! Confluence failed to create space with key 'del425234': this may happen if the key is already in use, a previous attempt to create a space with the same key failed, or the plugin has insufficient permissions. Please try again using a different space key." with value del3423 (2.1s)
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Error: Unexpected response code: 400: Cannot create Space
Solution
Deselect Copy Space Permissions as shown here:
This feature was working but Atlassian seems to have updated and broken the parsing of space permissions. We are working on a fix for this issue, but the workaround of deselecting Copy space permissions option does work. Please see issue CSOD-58 - Getting issue details... STATUS for up-to-date information.