Element has not converged problem

[IliasBouchkira]

Dear all,

I identified the Pitzer interaction parameters from experiments concerning (P and F) and I made them in the Pitzer database, however, when I run the simulation below, the following errors (concerning the convergence of elements) appear, can someone explain what is the problem? is there anything that should be done to solve this problem?

Thank you in advance,


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SOLUTION 2
    temp      80
    pH        7
    pe        4
    redox     pe
    units     mol/kgw
    density   1
    S         4
    P         5
    F         1
    Si        1
    Mg        0.01
    Al        0.01
    Fe        0.01
    Ca        5
    Na        0.01
    K         0.01
    Cl        0.01
    -water    1 # kg

[dlparkhurst]

If you attach the database, or send me a message with the database, I will take a look.