KeyError: '[1335 1083 1263  698  751  537  652  740  432  325] not in index'

#create model
model = Sequential()
model.add(Dense(25, input_dim=20, init='uniform',  activation='relu'))
model.add(Dense(20, init='uniform', activation='relu'))
model.add(Dense(1, init='uniform', activation='sigmoid'))

#compile model
model.compile(loss='binary_crossentropy', optimizer='adam', metrics=['accuracy'])

#Fit the model
model.fit(X, Y, epochs=120, batch_size=10)