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Hi, folks

I am currently utilizing HSE06 that provided by vasp 5.2.8 to calculate electronic structure of semiconductor, but I encountered the following error,

EDWAV: internal error, the gradient is not orthogonal 1 1
4.17685282786199
EDWAV: internal error, the gradient is not orthogonal 1 1
3.85638593439010
EDWAV: internal error, the gradient is not orthogonal 1 1
3.55561603629360
EDWAV: internal error, the gradient is not orthogonal 1 1
3.63102352937579

Can anyone give me some suggestions about how to fix that problem?

The following is my INCAR file,

ISTART = 1
ISPIN = 2
ICHARG = 2
ENCUT = 274.325 eV
ALGO = ALL ; TIME = 0.4
PREC = Medium
NELMIN = 4
IBRION = -1
LREAL = Auto
NGX = 162 ; NGY = 162 ; NGZ = 162
EDIFF = 1E-4
EDIFFG = -0.02
ISMEAR = 0 ; SIGMA = 0.05
NSW = 0
PRECFOCK = Fast
LHFCALC = .TRUE. ; HFSCREEN = 0.207 ### HSE06
LWAVE = .FALSE. ; LCHARG = .TRUE. ; LORBIT = 11

Besides, I used only gamma point for BZ integration.

Thank you in advance,

Burns

the INCAR file looks OK, please check whether POSCAR is reaonable and whether the system converges electronically until this error shows up

Any news on this error? I get the same message.. The POSCARs are OK, and the system does not converge electronically prior to this error.