I am trying to generate PDOS plot for SnO2 (110) surface. I have succesfully run the SCF calculation required prior to running the PDOS file, however I am facing problem while running the NSCF part. I always end up in the aforementioned error. I have looked up my error and found some solutions online. As suggested, I tried the following;

1. Decreasing the conv_thr,

2. Increasing and decreasing k-points,

3. Adding nbnds (272 for this system),

4. Removing wf_collect (since it is obsolete),

5. Removing startingpot and startingwfc,

6. Changing pseudopotential from PAW to USPP.

However, nothing seems to work for me. I have attached the requisite files below. I'll be very glad to receive some help.