Hello

I have a question

I am currently seeing that a couple of urls' are throwing a 404

end point denial of service
https://cti-taxii.mitre.org/stix/collections/95ecc380-afe9-11e4-9b6c-751b66dd541e/objects/attack-pattern--01d5c7e7-1c74-4b20-9e43-548c5f4de113

Event Triggered Execution
https://cti-taxii.mitre.org/stix/collections/95ecc380-afe9-11e4-9b6c-751b66dd541e/objects/attack-pattern--ccb9c607-8bfe-4141-8843-356453179da7

These were working fine in the past, but seem to be failing suddenly. any pointers on what could be the reason and how to fix these.

(Looks like I do not have perms to add the question- label)