By some reason the Browser module of OBS crashed.
It may happen if the security software blocked the
obs-browser-page.exe
file of OBS (lies in the folder
obs-plugins\64bit\
) or it was removed/damaged by other reasons, and you have browser source in your scenes. You need to check if any file of OBS was blocked/removed/quarantined by your security software. When OBS cannot access to its own files you get crash.
If you have any scene collection without the browser source inside - try to load it instead. This can be done via the command line key (like
obs64.exe --collection your_scene_collection_name
), because by default OBS automatically loads last used scene collection right at startup. This prevents OBS Browser source from load into memory via the OBS Browser module and thus, can potentially resolve the issue (usually the Browser module itself loads without the crashes). If you finally be able to run OBS - try main menu
Help>Check File Integrity.
Or you can try newer version of OBS. You can run it portable mode too (similar to
https://obsproject.com/forum/threads/crash-with-«could-not-find-locale-ini-path»-when-opening-app-settings.82157/#post-346499). By running newly created installation of OBS in portable mode you starting from the scratch, thus it should work OK (in case some of the sources or OBS settings were damaged).