ErrorListPlot shows only errorbars but not the data points.

Question

I have been using the command ErrorListPlot in almost all of my mathematica scripts. However, recently I have seen that after execution of my mathematica script, the function ErrorListPlot shows red colored (while all executed functions are black colored upon execution). I am importing the package by Needs[ErrorBarPlots``], which is called in the beginning of the script. Apart from the red color of the function ErrorListPlot, what is bothering me is that the plot shows error bars but not the data points. Initially, it used to show the data points as well as the error bars.