How to Fix: OBS Encoder Overloaded Error
A quick tutorial on the settings you can change to avoid this error on a middling PC! Note that these settings/changes are entirely anecdotal, based on my own experiences of tweaking OBS to avoid this encoder error when recording games on my not-so-great laptop.
A good resource: https://github.com/jp9000/obs-studio/wiki/General-Performance-and-Encoding-Issues
My laptop specs:
Intel i7-5500 4 CPUs @ 2.4GHz
8GB RAM
Intel HD Graphics 5500
Options:
Close tasks (and change task priority) 0:56
Change encoder (and output settings) 2:01
Output resolution/downsizing method/FPS 3:10
Advanced options 4:19
Stream options 4:42
For more guidance with tailoring OBS settings for streaming, you can estimate them with your system specs here: http://www.obsapp.net/estimator/