Did you look at your log?
23:43:39.686: Warning: OBS is already running!
looks like you had a crash and you didn't check Task Mgr to make sure all processes shutdown (or log/reboot.. depending).
is 2nd instance of OBS running reason for following? I don't know but I'm presuming unless intentional, it isn't helping
23:43:40.799: [win-wasapi: 'FOCUSRITE INTERFACE (ANOLOG 1+2)'] update settings:
23:43:40.799: device id: {0.0.1.00000000}.{048e3f29-e148-442c-a132-4600f5b2fe52}
23:43:40.799: use device timing: 1
23:43:40.799: [noise suppress: 'Noise Suppression'] NVAFX redist is not installed.
23:43:40.800: [WASAPISource::TryInitialize]:[Analogue 1 + 2 (Focusrite Usb Audio)] Failed to activate client context: 88890004
23:43:40.800: WASAPI: Device '{0.0.1.00000000}.{048e3f29-e148-442c-a132-4600f5b2fe52}' failed to start
...snip...
23:43:40.918: [win-wasapi: 'Audio Input Capture'] update settings:
23:43:40.918: device id: {0.0.1.00000000}.{aa428933-16f4-4129-b8de-265135e3419c}
23:43:40.918: use device timing: 0
23:43:40.927: Video Capture Device: DecodeDeviceId failed
23:43:40.927: Video Capture Device: Video configuration failed
23:43:40.943: WASAPI: Device 'CABLE Output (VB-Audio Virtual Cable)' [44100 Hz] initialized
23:43:40.952: WASAPI: Device 'Line In (DJM-900NXS2)' [44100 Hz] initialized
23:43:40.985: adding 42 milliseconds of audio buffering, total audio buffering is now 42 milliseconds (source: Audio Input Capture)
23:43:40.985:
23:43:41.114: CAM: data.GetDevice failed
23:43:41.114: CAM: Video configuration failed
23:43:41.487: ---------------------------------
23:43:41.487: [DShow Device: 'Video Capture Device 2'] settings updated:
23:43:41.487: video device: Game Capture HD60 S+
23:43:41.487: video path: \\?\usb#vid_0fd9&pid_006a&mi_00#9&140fda9e&1&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global
23:43:41.487: resolution: 1920x1080
23:43:41.487: flip: 0
23:43:41.487: fps: 59.94 (interval: 166833)
23:43:41.487: format: NV12
23:43:41.487: buffering: disabled
23:43:41.601: using video device audio: no
23:43:41.601: separate audio filter
23:43:41.601: sample rate: 44100
23:43:41.601: channels: 2
23:43:41.601: audio type: Capture
23:43:41.620: DShow: Run failed (0x800705AA): Insufficient system resources exist to complete the requested service.
23:43:41.620:
23:43:41.747: [obs-websocket] WSServer::start: Not locked to IPv4 bindings
23:43:41.747: [obs-websocket] server started successfully on port 4444
23:43:41.748: [obs-websocket] IO thread started.
23:43:43.800: WASAPI: Device '{0.0.1.00000000}.{048e3f29-e148-442c-a132-4600f5b2fe52}' failed to start
23:43:46.801: WASAPI: Device '{0.0.1.00000000}.{048e3f29-e148-442c-a132-4600f5b2fe52}' failed to start
followed by hours of repeating those last couple of lines