Couchbase Document etmpfail Error

hi all, i am using couchbase server 7.6.4, but my Document get error:
etmpfail returned from memcached
how can i repair my data?
thankyou

etmpfail is a temporary failure. It can be due to the server not having sufficient resources at that moment due to other client requests. Usually retrying the operation is sufficient. If the error persists, check the server logs.

I have restart my vm server ,and repair my data ,thankyou!