Unable to calculate Exchange and DMI for compressive strain

[AaDiTya NaLin]

Dear TB2J Team,
I am trying to calculate exchange and DMI for tensile and compressive strain. For tensile strain , I am able to calculate it , however for compressive strain it is showing this raise value error. 
I have attached the screenshot of the error associated with it. 
Please look into my query and reply .
Thanking You
Aaditya Nalin

[Xu He]

Hello, 

Did you check both the DFT calcualtions are converged and fully finished? If not, SIESTA does not write the Hamiltonian to file.

Best regards, 
HeXu