Sovol SVO6 fails printing around the same layer each time

Use glue stick and put the bed temperature at least 70c. I never go below 70c. My bed temperature is 80c.

I would up the the nozzle 210c+ and lower the fan speed to 75%.

Glue sticks are inexpensive. You can get 3 purple stick for $3 at local Walmart. I cover the entire bed with glue stick. That solves most adhesion problems.