Using the 3CX log viewer, I can browse on my server to C:\ProgramData\3CX\Instance1\Data\Logs and open the current logs. There's 3 .blrec and 1 .bldef file in this folder. I can review those logs without any trouble, but they only show today's calls. In the 3CX web administration I have set it up to keep backups of logs for 7 days, and set it to "Normal" log detail. When I try to open yesterday's log located at C:\ProgramData\3CX\Instance1\Data\Logs\Backup\20180205, I get an error saying "Log file cannot be opened. 3CX Binary log viewer requires one bldef and at least one blrec file. The backup folders only contain .BLREC files. How can I view these backup logs?