[ERROR] Could not find 'None' in 'dropped'

[j143]

[DEBUG] Values in 'dropped' column: [nan, 'Cholestrol', 'BloodPressure', 'ExerciseAngia', 'Cholestrol,BloodPressure', 'Cholestrol,ExerciseAngia', 'BloodPressure,ExerciseAngia', 'Cholestrol,BloodPressure,ExerciseAngia']
[ERROR] Could not find 'None' in 'dropped' column for logistic regression accuracy. Using 0.0 as fallback.

the data is

dropped,accuracy,features
None,81.9672131147541,"Age,Sex,CP_Type,BloodPressure,Cholestrol,BloodSugar,ECG,MaxHeartRate,ExerciseAngia,FamilyHistory"
Cholestrol,78.68852459016394,"Age,Sex,CP_Type,BloodPressure,BloodSugar,ECG,MaxHeartRate,ExerciseAngia,FamilyHistory"
BloodPressure,77.04918032786885,"Age,Sex,CP_Type,Cholestrol,BloodSugar,ECG,MaxHeartRate,ExerciseAngia,FamilyHistory"
ExerciseAngia,85.24590163934425,"Age,Sex,CP_Type,BloodPressure,Cholestrol,BloodSugar,ECG,MaxHeartRate,FamilyHistory"
"Cholestrol,BloodPressure",77.04918032786885,"Age,Sex,CP_Type,BloodSugar,ECG,MaxHeartRate,ExerciseAngia,FamilyHistory"
"Cholestrol,ExerciseAngia",81.9672131147541,"Age,Sex,CP_Type,BloodPressure,BloodSugar,ECG,MaxHeartRate,FamilyHistory"
"BloodPressure,ExerciseAngia",78.68852459016394,"Age,Sex,CP_Type,Cholestrol,BloodSugar,ECG,MaxHeartRate,FamilyHistory"
"Cholestrol,BloodPressure,ExerciseAngia",75.40983606557377,"Age,Sex,CP_Type,BloodSugar,ECG,MaxHeartRate,FamilyHistory"