Your logs show you using the live stream monitor on chaturbate etc.
Please provide logs showing just the DVR.
By default JMR will DVR record at 1/4 your screen size. This is for performance reasons. You can change this in the settings - Settings > DVR > Request Best Output Size to off and set what you want. Be mindful though that not all players can be adjusted to the size you might select, and will be recorded at whatever they adjust to.
why only 310 p
livedosti.com? If so that site is not loading here at the moment?
Are you using Windows or Mac, We have a screen recorder for Mac but on the PC in JMR we have the DVR feature.
If you are on a PC, please provide debug logs so I can see what is going on. If on a mac please post to the mac screen recorder forum