Answers for "failed to load resource: the server responded with a status of 503 (service unavailable)"

failed to load resource: the server responded with a status of 503 (service unavailable)

This specific problem is why packages like express-favicion and serve-favicon exist. They add a handler for the favicon.ico file.

What you've done there has only made things worse as it tells the client that the icon for the page is actually the page itself.

failed to load resource: the server responded with a status of 502 (bad gateway)

for j in x:
    if j == 1:
        index_for_multi_array = 0
    else:
        index_for_multi_array = 1

    q = con[j-1] # index 0 and 7 
    q = q * 1e-6
    m = mass[j-1]
    for i in range(1,int(bands[j-1])+1):
        #read parameters
        vc         = float(_1_wnum[index_for_multi_array][i-1])
        S0         = float(_1_int[index_for_multi_array][i-1] )
        gamma_air  = float(_1_abroad[index_for_multi_array][i-1])
        gamma_self = float(_1_sbroad[index_for_multi_array][i-1])
        n          = float(_1_abcoef[index_for_multi_array][i-1] )
        #resonance shape
        alpha_1  = float( (1.0- q) * gamma_air  + q * gamma_self ) * (P/P0) * ((T/T0) ** n)
        fv       = (alpha_1 / math.pi) * np.power((np.true_divide(v,vc)),2) * np.add((np.true_divide(1, np.power(v-vc,2) + alpha_1**2)) , np.true_divide(1,np.power((v+vc),2)+alpha_1**2))
        gv       = np.true_divide(v,vc) * pre_calculation / np.tanh(h*c*vc / (2*k*T)) * fv  
        S        = S0  #line intensity
        sigmav   = gv * S0
        qq       = q * P/R/T*NA
        kv       = P/P0*T0/T*qq*sigmav
        kvt[index_for_multi_array,:] = kvt[index_for_multi_array,:] + kv