Enabling the logs

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This error is caused by the discontinued Atlassian's plugin Subversion for Jira. It has a bug and the service is not removed along with the app and it remains active causing errors. It must be manually removed from the Jira administration services section and reboot Jira.

Cannot authenticate on a repository on Windows

Add the following configuration to Jira service configuration and re-start Jira:

-Dsvnkit.http.methods=Basic,Digest,Negotiate,NTLM