Nissan X-Trail T32.I Ti (2014-2017) Questions & Answers

I have a late 2015 built Ti Ntrek model that I bought 2nd hand about a year ago Lately have been noticing the tow bar ends up touch and scrapping on the ground when I do over an uneven surface or where the driveway and the road is on a different level This seems strange for a higher SUV and 4WD model car where my other car just a standard low hatch and sedan doesn't have this issue I am worried is it the suspension thats gone or is there an easy fix to raise it somehow without spending too much money and making it rough on the roads like the Utes Thanks in advance for your help and insight