You better luv me.
Spam: LightManager::uninstallGLLights: no lights installed!
The caused by anything that the shader tries to do its light thang with. (Everything expect lights?)
Trust, me.
Make a server and duplicate this error by trying to do a emitter, even a wrench can cause this.
[P.S. I think the cause may be the shaders and Shadows trying to make the emitter emit a light? And it's not there because the Intel users have Shaders activated, but due to Intel, shaders don't show, causing this problem.)