Error opening file

[pravin_karna]

Hello,
This is Pravin.
I was running an EPW calculation but I faced an error stating:

Error in routine readint3paw (99):
error opening ./save/NiTi.dvscf_paw_q1

The dvscf file in SAVE directory is listed as NiTi.dvscf_q1.
But its trying to read another file

I am using the same ecut value in prior and post phonon calculation. I have run several epw calculations already for metallic system. I wonder whether it is due to the potential that I am using.
I am using PAW potential with LDA approximation for both Nickle and Titanium.

Thanks in advance