You've won ~$1000 in pots that go to showdown - blue line at the top. This is money won when you have better cards than opponent @ SD obv.

You've lost ~$2400 in pots that don't go to show down - red line at the bottom. This is money you've lost when you've folded. The suggestion usually is you're folding too many better hands, and not bluffing enough - this is very dependent on the games you play though, you may not need to bluff out better hands if your opponents are showdown monkeys, but the fact you are running $1000 below EV is compounding this.

Use pokerEV to find out situations where you're folding & losing money in non showdown pots - cbetting too much? not cbetting enough? getting floated constantly? getting bluffed off the river too much? etc