Screen Only Shows The Background And Nothing Goes On

If this template helps then use it. If not then just delete and start from scratch.

OS (Win10):
PsychoPy version (v2020.1.3):
Standard Standalone

I updated my Psychopy to the latest version, but when I run any task, the screen just shows the background and nothing goes on.

Can anyone help me solve this issue?

This is what happens when something in your experiment errors after drawing the window but before drawing any stimuli - everything stops on error, including the lines later on which close the screen. This could be any number of things, but if you use /```CODE GOES HERE/``` (without the /) then you can post the code from your experiment here. If you’re using Builder view, you can view the code by clicking the Compile button: compile32