i am running cron job every 4 hour to create mongodbbackup but when i am trying to restore backup inside mongodb running container, it throwing below error.
error restoring from archive '<path to file>': reading bson input: error demultiplexing archive; archive io error
I am using below command to restore it:

docker exec mongodb sh -c 'mongorestore --authenticationDatabase admin                                               
  -u <username> 
    -p <password> 
    --nsFrom "<file.*>" 
    --nsTo "<file.*>" 
    --gzip  --archive=<path to file>'

but if i am creating backup without cron job and restoring it error is not there. can you please help me what can be the reason for this error