Server errors during Atom Feed validation

[JohannaOtt]

• [ ] a description of the steps to reproduce your issue: For every Atom Feed I am testing in the validator (production and staging), I get two errors with the message "The server experienced a several unexpected error. Please, try again later. if the problem persist, please contact with the helpdesk.". This concerns Test ID "EIDe3345203-a8f6-4db5-bf12-814533a4625d" and "EID90ac1268-2c6a-46d4-94da-cb1a595847b2" I am not sure if this is an issue with the validator or if there really is an issue in the Atom Feeds. If the latter is the case, there should be a message returned to the user that describes the issue.
• [ ] a screenshot illustrating the problem
• [ ] the Test Report (ideally as an attachment to the issue) Test.zip
• [ ] the name of the Test that failed or better: change the Level of Detailin the Report by clicking on All Details, then scroll down to the failed test and copy the Link on the right-hand side of the Assertion URI https://inspire.ec.europa.eu/validator//v2/TestRuns/EID6f55253a-45c4-4468-b7bc-f77533325981.html?lang=de#EID7365043d-017c-1000-b4e7-d123c3e74536 https://inspire.ec.europa.eu/validator//v2/TestRuns/EID6f55253a-45c4-4468-b7bc-f77533325981.html?lang=de#EID73650ea5-017c-1000-bcc0-96725b67a3bc
• [ ] the URL of your service / the file you have uploaded or referenced (as an attachment). Happens for example for https://test.haleconnect.de/services/bsp/org.8.89bf213c-2d2d-438a-b897-470b8efc01d1/service/atom/id_predefined_dataset