error during refresh

Hello, I created a new experiment "a3x8" and I was trying to as usually refresh the experiment and I get this error: Making a backup of your current proj folder at /esarchive/autosubmit/a3x8/proj_1628869094 [ERROR] Trace: [Errno 2] No such file or directory: '/esarchive/autosubmit/a3x8/proj' [CRITICAL] Unhandled error: If you see this message, please report it in Autosubmit's GitLab project

what is the problem?