Hi I have been having an issue with opal daemon shutting down without any information being printed in the debug log to help trouble shoot it. Does opalcoin have some debug level launch flags?
Coolcash can answer that better then I can, but let me ask some questions quick..
What system are you running?
What version of Opal are you using?
Have you downloaded the newest wallet from the opal-coin.com or compiled from github?