change the dataset key

app.py

@@ -5,7 +5,7 @@ from datasets import load_dataset, DatasetDict
 dataset = load_dataset('thankrandomness/spam-detection-sample', data_files='spam-sample.csv')
 
 # Split the dataset into train and validation sets
-split_dataset = dataset['texts'].train_test_split(test_size=0.3, seed=42)
+split_dataset = dataset['train'].train_test_split(test_size=0.3, seed=42)
 dataset = DatasetDict({
     'train': split_dataset['train'],
     'validation': split_dataset['test']