KeyError while using `show_plots.py` script

I received the following error message:
```
Traceback (most recent call last):
File "show_plots.py", line 275, in
main()
File "show_plots.py", line 269, in main
show_metrics(config_data['bags'], bags_checkpoints, bags_metadata, bags_lapdata, first_images)
File "show_plots.py", line 247, in show_metrics
circuit_diameter)
File "show_plots.py", line 38, in __init__
self.add_labels()
File "show_plots.py", line 122, in add_labels
self.experiment_metrics['experiment_total_real_time']) + 's')
KeyError: 'experiment_total_real_time'
```

I use the following command:
```
python3 show_plots.py -b 20220605-082510.bag
```