One or more of the third party plugins you installed is causing the issues.
If you really need this plugins, you shouldn't update OBS until a new version of the plugin is released. If you don't use it or don't really need it, completely remove it. Also, you should contact the dev of this plugin about the issue.
More info and things to look at:
OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming. Stream to Twitch, YouTube and many other providers or record your own videos with high quality H264 / AAC encoding.
obsproject.com