Cannot get rid of Imaginary Frequency

Questions
#1

Hi, I am trying to do geometry optimization and frequency calculation of aniline and could not get rid of the imaginary frequency part. I have tried with higher grid but it’s still there. Could anyone help me with this?
$molecule
0 1
H -0.0000000 -2.1476227 1.7123822
C -0.0000000 -1.2107108 1.1704369
C -0.0000000 0.0000000 1.8693220
H -0.0000000 0.0000000 2.9516701
C 0.0000000 1.2107108 1.1704369
H 0.0000000 2.1476227 1.7123822
C 0.0000000 1.2125266 -0.2282863
H 0.0000000 2.1559776 -0.7596931
C 0.0000000 -0.0000000 -0.9354220
C -0.0000000 -1.2125266 -0.2282863
H -0.0000000 -2.1559776 -0.7596931
N 0.0000000 -0.0000000 -2.3519793
H 0.0000000 0.8862698 -2.8778829
H 0.0000000 -0.8862698 -2.8778829
$end

$rem
BASIS = 6-31G(d,p)
GUI = 2
JOB_TYPE = Optimization
METHOD = CAMB3LYP
SCF_CONVERGENCE = 8
XC_GRID = 2
SOLVENT_METHOD = PCM
SYMMETRY = FALSE
SYM_IGNORE = TRUE
MEM_TOTAL = 248000
MEM_STATIC = 4000
$end

$pcm
THEORY IEFPCM
$end

$solvent
DIELECTRIC 35.688
OPTICALDIELECTRIC 1.8068
$end

@@@

$molecule
read
$end

$rem
BASIS = 6-31G(d,p)
GUI = 2
JOB_TYPE = Frequency
METHOD = CAMB3LYP
SCF_CONVERGENCE = 8
SOLVENT_METHOD = PCM
IDERIV = 1
XC_GRID = 2
MEM_TOTAL = 248000
MEM_STATIC = 4000
SYMMETRY = FALSE
SYM_IGNORE = TRUE
$end

#2

These are occasionally grid artifacts but that’s relatively rare because the default grids are reasonable. Better suggestion is to tighten the optimization convergence criteria. For this and other suggestions, see

It can also be helpful to manually displace the system along the negative-curvature mode, using the normal mode information that is printed by the frequency job.