How to check graphs or charts present on website?

I have a website where i have lots of graphs present but sometime what happen it does not come up because of loading time or error. So I want to check they are present or not. Is there any way to check them in katalon studio?

So to fix the loading issue you can use this and then use the verifyElementPresent. Now really if your waiting for the element to be visible you dont really need the verify present step because the first step will fail if its not visible, however i would add it just for proof of concept.

WebUI.waitForElementVisible(findTestObject('Your object'), 20)
WebUI.verifyElementPresent(findTestObject('Your object'), 20)