What database is opened? or which DB server is connected?
Can you provide us crash log?
BTW Valentina Studio on start AFTER crash, can show dialog asking if to send crash log.
You can also mark [x] do not ask, to remember your answer.
Also please note, that
=========== Mantis Info =====================
It is better to report such issue(s) into Mantis - our bug tracker.
Why it is better? Described in these FAQs:
* Each separate issue report into separate issue report.
* If you have database or project then attach it compressed to the report.
you can put up to 250Kb archives.
* Provide in the report as many detailed info as you can: OS, version, locale, ….
* If possible, please provide exact steps how to reproduce problem.