The stack seems corrupted, so it's not possible to directly identify the module where the crash took place. I forgot the most common reasons for stack corruption, so I give the most common reason for every crash: look through all your additionally installed 3rd party plugins of OBS and make sure you a) still need it (otherwise remove it), and b) it's the most current version. Additionally, make sure your Elgato software is updated, Windows is updated and your graphics driver is updated.