Congratulations for this amazing piece of software.
I use Debian 10 and I've installed Piano Booster from the Debian repositories and it worked great, but when I tried to open a midi file that I downloaded from Internet, PB showed an error, it can't open the file:
Now every time I open PB, shows the same error. When I tried to select a lesson (downloaded from the page) it shows the same error (with the name of the midi file from the lesson), PB is not working anymore.
This are the messages from console:
locale = es_BO
Info: Opening song /home/georgeguitar/M�sica/BoosterMusicBooks/BoosterMusicBooks4/Booster Music/07-AmazingGrace.mid
ERROR: Zero tracks in SMF file
Info: Using Pianist Channels 1 + 2
Violación de segmento
Sorry about the language's messages, the OS is setup in Spanish.
So I can understand what has gone wrong. Please can you post the content of your Piano Booster.ini which is located here: ~/.config/PianoBooster/Piano Booster.ini and then try deleting that file by following these instructions: