@Devin Duesler We understand you are trying to create a managed certificate but are unable to due to receiving an error.
This error will occur when there is an issue with the certificate creation. There is a timeout noted in the error that you shared of when the request will error out. At this point, you can retry the request.
Can you please retry your certificate request to see if the new request successfully completes? If you are still having issues, please reply here so we can assist you further.