Error while opening a hard disk volume from the file manager

Hi experts,
I am getting the error message – Failed to mount “New Volume”, while opening a hard disk volume from the file manager.
Failed to mount “New Volume”.
DBus error org.gtk. Private. RemoteVolumeMonor.Failed:
An operation is already pending.
Close
However, it opens without any discrepancy and enables me to access all the files.
Would you please help me regarding the error message? I want to get a remedy for this.
Thanks.
Thanks in advance.
