SQLMap Essentials - Skills Assesment - Final Flag

Hello,
I have been stuck on the Skills assessment for 3 days now. I already have the POST request file and have tried --tampers , -v , --level, --skill and -skip-waf

I keep gettting the error that user agent is not injectable. If anyone has any tips i would very much appreciate the help.

did u solve it? I’m stuck too, cant understand it, used every tamper exist and other options too, read the full verbose with -v 6 and its errors, still nothing :expressionless: