Error trying to run `./pokefetch.sh pikachu`.

Here is the error:

```
Traceback (most recent call last):
  File "pokefetch.py", line 48, in <module>
    base_total = base_total[base_total.find("Total"):]
AttributeError: 'NoneType' object has no attribute 'find'
stb_image error: No such file or directory
```

I have the dependecies that were listed in the readme installed.