Sorry to hear this Teuros, what we really need to see here is your most recent (1.2.1 onwards) console logs which can be located here:
Press the Windows key + R
Enter %appdata% within the search input and select 'OK'
Navigate to AppData\Roaming\Fatshark\Vermintide 2\console_logs
I’d recommend sending your console logs to us (in addition to a description of your issue) over at http://fatsharkgames.com/support - we aim to reply within 24 hours (Monday - Friday) and you’re more likely to receive a quicker response over there.