In this case it is not console.log needed, good thing you posted launcher.log :
Writing out game files...
ERROR: could not get modified time from newly written file C:\Users\owner\Documents\Blockland//Blockland.exe
launcherRunGame C:\Users\owner\Documents\Blockland//Blockland.exe
args:
Doesn't look like 'C:\Users\owner\Documents\Blockland//Blockland.exe' exists, trying to launch anyway!
Trying to launch game with CreateProcess, binary is 'C:\Users\owner\Documents\Blockland//Blockland.exe'
CreateProcess failed with 0, trying system - note launcher will run while game is active!
Looks like your Blockland.exe doesn't exist / is corrupted / read-only.