No output session in log.
Only thing I do see is this:
19:58:43.025: adding 23 milliseconds of audio buffering, total audio buffering is now 139 milliseconds (source: Mic/Aux)
20:00:24.934: adding 23 milliseconds of audio buffering, total audio buffering is now 162 milliseconds (source: Mic/Aux)
20:00:28.908: adding 23 milliseconds of audio buffering, total audio buffering is now 185 milliseconds (source: Mic/Aux)
20:01:05.673: adding 46 milliseconds of audio buffering, total audio buffering is now 232 milliseconds (source: Desktop Audio)
20:02:42.339: adding 46 milliseconds of audio buffering, total audio buffering is now 278 milliseconds (source: Mic/Aux)
20:03:44.947: adding 23 milliseconds of audio buffering, total audio buffering is now 301 milliseconds (source: Mic/Aux)
20:05:00.780: adding 46 milliseconds of audio buffering, total audio buffering is now 348 milliseconds (source: Mic/Aux)
20:06:50.305: adding 23 milliseconds of audio buffering, total audio buffering is now 371 milliseconds (source: Mic/Aux)
20:10:00.345: adding 23 milliseconds of audio buffering, total audio buffering is now 394 milliseconds (source: Mic/Aux)
20:29:23.230: adding 46 milliseconds of audio buffering, total audio buffering is now 441 milliseconds (source: Mic/Aux)
Which is generally seen when a PC is overloaded, either the CPU or your USB controller if using a USB audio device.
Also Windows is a couple of years out of date.
19:55:19.990: Windows Version: 10.0 Build 17134 (revision: 829; 64-bit)
You should update to at least 1809 (Build 17763). The above build has a broken feature that can negatively impact OBS. Not certain your issue is related to that, though.
https://en.wikipedia.org/wiki/Windows_10_version_history
