Hello xSmazh.
Please attach the contents of your C:\Users\*Username*\AppData\Local\DayZ to this ticket so we can determine what is causing the crash. In case the files cannot be uploaded due to size limit, upload them to some cloud site from which we can easily access the files. Also if you are using any startup parameters, try removing them as we do not support them anymore and they cause various issues within the game (crashes, low performance and such). As for the resolution change, you can change your resolution manually through DayZ.cfg file (which can be opened in notepad), which should be located at C:\Users\*username*\Documents\DayZ.
Regards,
Geez