CPSCF Failure error in Frequency calculations

Questions
#1

I am running frequency calculation, and I am getting CPSCF Failure error. Does anyone know how to solve this. I tried increasing the memory but it did not help.
$molecule
0 1
N -0.21673 1.14967 0.01709
H 0.82640 1.15937 -0.00131
H -0.55464 0.63904 -0.82769
H -0.55465 2.13520 -0.03873
$end

$rem
BASIS = def2-TZVP
GUI = 2
JOBTYPE = FREQ
MEM_TOTAL = 8000
METHOD = B3LYP
NEO = true
NEO_EPC = epc172
NEO_N_SCF_CONVERGENCE = 11
NEO_VPP = 0
SCF_ALGORITHM = GDM
SCF_CONVERGENCE = 11
SYM_IGNORE = 1
XC_GRID = 000099000302
$end

$neo_basis
H 3
S 1 1.000000
4.0 1.0
S 1 1.000000
8.0 1.0
S 1 1.000000
16.0 1.0
S 1 1.000000
32.0 1.0
P 1 1.000000
4.0 1.0
P 1 1.000000
8.0 1.0
P 1 1.000000
16.0 1.0
P 1 1.000000
32.0 1.0
D 1 1.000000
4.0 1.0
D 1 1.000000
8.0 1.0
D 1 1.000000
16.0 1.0
D 1 1.000000
32.0 1.0

$end

#2

What was the error? Could you print it here?

#3

@kaushik Here is the error
CG 1 0.02841021 Conjugate Gradient Iteration
CG 2 0.00941165 Conjugate Gradient Iteration
CG 3 0.00614953 Conjugate Gradient Iteration
CG 4 0.02045260 Conjugate Gradient Iteration
CG 5 0.02045260 Conjugate Gradient Abort - Undesirable Curvature Detected

Q-Chem fatal error occurred in module progman/main.C, line 178:

Problem running Q-Chem:
CPSCF Solver failure

#4

For what it’s worth, I can reproduce this with Q-Chem v 6.3. Not sure what the issue is.