Hi Gerrit,
I get the same errors- it is currently not possible to create deployment packages from team server.
https://status.mendix.com/ does nto state issues though.
Browser console logs: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
Update - We are investigating the issue.
May 27, 10:48 CEST
Investigating - We have observed and are investigating degraded performance of the Developer Portal. Customers with apps running on SAP BTP are not able to create new deployment packages. You are able to deploy existing deployment packages
May 27, 10:46 CEST