You can take a taxi, for approximately 40-50 euros (20-35 minutes depending on the traffic jam). More expensive but undoubtedly easier.
1.Once in the airport, you should go to the Terminal 2, where the trains station is. There is only one train line. You have to buy a go & return ticket: 2 zones to "Sabadell Centre" station. Catch the first train and get off in "Sants Estació" station.
Time from airport to Sants Estació 19 mints.
2. Once in Sants Station- you should go to railtrain/ via 8, and catch the train direction to Manresa/ Terrassa.
(around 30 minutes) and get off at "Sabadell Centro"- station.
Then you can take a taxi 5 mints to YolanCris Store or go walking (21 minutes)