What other support options (paid, free) are available except this forum?

We are in holiday in the past week, so there are some delay.
And, for topics - Can I determine DS and JP version at python level? and Stability of Jetson Nano together with DeepStream , we replied you even we were in holiday.

As discussed on topic - Stability of Jetson Nano together with DeepStream , this is because of the filesystem in your SDCard. You need to make sure you didn’t hot-plug SDCard when system is running, or sudden power shutdown, HW connection of the SDCard is good, etc.