18:08:36.265: Running as administrator: false
You should run OBS as Administrator. It enables a GPU-priority workaround, to help ensure OBS gets the tiny slice of GPU time it needs to do its housekeeping tasks. If it doesn't, frames will be skipped due to rendering delays.
18:08:43.563: - scene 'Minecraft':
18:08:43.571: - source: 'MC' (game_capture)
18:08:43.571: - filter: 'Color Correction' (color_filter)
18:08:43.571: - source: 'full screen' (monitor_capture)
You have a Game Capture and a Monitor Capture source in the same scene, which can interfere and cause major problems. Monitor Captures should be avoided at all costs, if possible. If you need to use one, have it in a separate scene with no Game or Window Captures present.
20:56:31.400: Output 'simple_stream': Number of lagged frames due to rendering lag/stalls: 1502 (0.4%)
20:56:31.400: Output 'simple_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 24849 (7.0%)
20:56:31.401: Video stopped, number of skipped frames due to encoding lag: 1512/356491 (0.4%)
Your connection cannot support the 3500kbps you are attempting to use. This is absolutely a network connection issue causing the 7% dropped frames. Additionally, 3500kbps is FAR too low to handle 1080p60 or 900p48. You'll want 1080p30 or 720p60 at most, and to dial back to around 3000kbps.
I'd recommend downloading and running R1ch's Twitch Test tool. It will do a real bandwidth check to the ingest servers, including speeds and connection quality. You want a Quality of at least 80, preferably 100, and make sure you run a Long test; the default Short can miss intermittent problems very easily as it's only 10 seconds long.