Not on your end. You could switch to NVENC if you have a Nvidia GPU and recent model. This, to avoid using x264 and its DLL.
There's not enough information in the call stack and no symbolic information to help know what exact function was called to generate the exception. Unless this problem is easily reproducible, I wouldn't expect a fix anytime soon. Given that the call structure hasn't been reported from other users since 26.1.1 has been released.
If this happens all the time on your system and you been an OBS users from the past, another suggestion is to rollback to an earlier version.
Older versions can be found here:
OBS Studio - Free and open source software for live streaming and screen recording - obsproject/obs-studio
github.com
Search for a version and then click on the Assets link. Try starting off with 26.0.2 and download the Windows full installer to see if the problem goes away. Then, report back what version works.