Starting by sqlite 3.7.0 ( https://www.sqlite.org/releaselog/3_7_0.html ) a new "Write-Ahead Log" option (hereafter referred to as "WAL") has been introduced. It seems that sqliteman is not able to load databases with this journal mode. I'm getting an error saying "unable to open or create file . It is probably not a database".
I've attached a sample database file to reproduce the issue, you have just to open it using sqliteman.
SampleWAL.zip