Python ValueError: alpha <= 0 Dirichlet Distrubution

I have a poll result of an election. I want to simulate 50000 draws from a Dirichlet distribution for each poll. But when I run this cell. I get this error but can't figure where I was wrong. Any help would be appreciated.

My code below:

number= 50000

for i in range(len(dAll)):
    vector =list(dAll[i][3:7])

    random=np.random.dirichlet(vector,number)

    postn=[]
    for i in range(number): postn.append(random[i].argmax(axis=0))
    postn=np.array(postn)
    
    PNPD=100*len(np.where(postn ==0)[0])/number
    ProbPNPD.append(PNPD)
    
    PL=100*len(np.where(postn ==1)[0])/number
    ProbPL.append(PL)
    
    AD=100*len(np.where(postn ==2)[0])/number
    ProbAD.append(AD)
    
    Others=100*len(np.where(postn ==3)[0])/number
    ProbOthers.append(Others)

#Probability of victory for each party
    setprint=False
    if setprint == True:
        print('PNPD',PNPD,'%')
        print('PL',PL,'%')
        print('AD',AD,'%')
        print('Others',Others,'%')

Error code:

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-7-16ba25b5e62c> in <module>
      4     vector =list(dAll[i][3:7])
      5 
----> 6     random=np.random.dirichlet(vector,number)
      7 
      8     postn=[]

mtrand.pyx in numpy.random.mtrand.RandomState.dirichlet()

ValueError: alpha <= 0

I don't have any negative numbers in my dataset. check in here