OBS not livestreaming and still runs in background

[flynngurung]

I want to live stream for like say 5 hours but the OBS stops livestreaming after 2 hours (If LUCKY) or within 50 mins. Then I close the app but the app is shown in the task manager and won't open when try. So, I have to end task in TASK MANAGER and then only open the app. But still the problem is not solved.
My internet connection is 20mbps upload and download according to my internet package and speedtest.

https://obsproject.com/logs/BAUkyfQ0t_vMCtir