If your show stops in the middle of the show your computer may be going into sleep mode and you should adjust your power settings as follows:

 

Open the Windows Control Panel
Open Power Options (Click Classic View on left if you can't find Power Options)
Click create a power plan
Select High Performance and click Next
For "Put the computer to sleep" select Never
Click Create

 

Open the Windows Control Panel

Open Power Options (Click Classic View on left if you can't find Power Options)
Change System Standby to "Never"

Click OK

 

If this doesn't work try opening each sequence in the Sequence Editor and clicking the play button to make sure each song plays correctly. If you get an audio error when opening the sequence you may need to link up the audio file by clicking Edit > Media File (or Audio File in version 1 software).