Hey,
Sorry to hear you seem to be having technical difficulties.
Feel free to send us (personal pm to me would work) the log.txt file and possibly any .dmp files, that way we can see if we can figure out the reason for your crashes.
Those files are located next to the engine executable, which by default is at "C:\Program Files(x86)\Steam\Steamapps\common\The Divinity Engine 2"
Sincerely,
Kevin