ErrorListPlot does not work

I'm a little new to Mathematica, but all my notebooks do not seem to draw data about ErrorListPlot. My code, and even the fairly simple code that Wolfram provides on its website https://reference.wolfram.com/language/ErrorBarPlots/ref/ErrorListPlot.html, does not work and the output exactly matches the input. Even in an otherwise completely new notebook, right after the relaunch of Mathematica. I'm working with Mathematica 11.2 and have absolutely no idea what to do … PlotList works fine.