Couchbase 6.5 cbrestore - error in pump_mc.py: struct.error: int too large to convert

[root@localhost bkp]# /opt/couchbase/bin/cbrestore -u Administrator -p ******* /root/bkp/ http://127.0.0.1:8091 --bucket-source=person-data --bucket-destination=person-data

Exception in thread s0:] 17.7% (114000/estimated 642907 msgs)

Traceback (most recent call last):

File “/opt/couchbase/lib/python/runtime/lib/python3.7/threading.py”, line 917, in _bootstrap_inner

self.run()

File “/opt/couchbase/lib/python/runtime/lib/python3.7/threading.py”, line 865, in run

self._target(*self._args, **self._kwargs)

File “/opt/couchbase/lib/python/pump_mc.py”, line 112, in run

rv, batch, need_backoff = self.scatter_gather(mconns, batch)

File “/opt/couchbase/lib/python/pump_cb.py”, line 88, in scatter_gather

vbucket_id=vbucket_id)

File “/opt/couchbase/lib/python/pump_mc.py”, line 233, in send_msgs

conf_res) # type: ignore

File “/opt/couchbase/lib/python/pump_mc.py”, line 595, in cmd_request

ext = struct.pack(">IIQQI", flg, exp, int.from_bytes(meta, byteorder=‘big’), cas, force)

struct.error: int too large to convert