SCF failed to converge

Hi, I got a error message ¨ SCF failed to converge¨. Has anyone come across this error and how to solve it? Here is the input file:
$molecule
0 1
I 1.01740000 16.44210000 24.50580000
C 1.14650000 17.96940000 23.09310000
C 1.19680000 17.61200000 21.78550000
C 1.18260000 19.36610000 23.47650000
C 1.30670000 18.61940000 20.75940000
H 1.15960000 16.69380000 21.54450000
I 1.20110000 19.96120000 25.48530000
C 1.25460000 20.33990000 22.53040000
N 1.36740000 18.23600000 19.49540000
C 1.32910000 20.00540000 21.14690000
H 1.25530000 21.25250000 22.79430000
C 1.47970000 19.20830000 18.56790000
N 1.42470000 20.98520000 20.24500000
C 1.58060000 18.82590000 17.20710000
C 1.51720000 20.60640000 18.95640000
C 1.58450000 17.45570000 16.83520000
C 1.71530000 19.84590000 16.21820000
C 1.65200000 21.62640000 17.96730000
C 1.59990000 16.29810000 16.56640000
C 1.75300000 21.24400000 16.60650000
N 1.80790000 19.46720000 14.92940000
C 1.64800000 22.99660000 18.33920000
Si 1.75180000 14.48120000 16.29300000
N 1.86520000 22.21630000 15.67900000
C 1.90340000 20.44710000 14.02740000
C 1.63260000 24.15420000 18.60800000
C 3.43350000 13.99390000 17.02990000
C 1.72860000 14.15810000 14.43170000
C 0.34580000 13.70130000 17.28150000
C 1.92580000 21.83290000 14.41500000
C 1.97790000 20.11240000 12.64400000
Si 1.48070000 25.97120000 18.88150000
H 3.56330000 13.01570000 16.86860000
C 4.58480000 14.73340000 16.34680000
C 3.45090000 14.22040000 18.53780000
H 2.55650000 14.58690000 14.07010000
C 1.83940000 12.68340000 14.08380000
C 0.55470000 14.84600000 13.71930000
H 0.41610000 14.07280000 18.20730000
C 0.49020000 12.18050000 17.41800000
C -1.04250000 14.07360000 16.77820000
C 2.03560000 22.84030000 13.38900000
C 2.04990000 21.08610000 11.69810000
H 1.97730000 19.19960000 12.38020000
C -0.20090000 26.45840000 18.14450000
C 1.50390000 26.29420000 20.74270000
C 2.88670000 26.75100000 17.89290000
H 5.43120000 14.48570000 16.77410000
H 4.44720000 15.70010000 16.43030000
H 4.61340000 14.48830000 15.39850000
H 4.34430000 14.02070000 18.88780000
H 2.79400000 13.63140000 18.96410000
H 3.22580000 15.15450000 18.73040000
H 1.98360000 12.58540000 13.11940000
H 1.01200000 12.22460000 14.33870000
H 2.59440000 12.28930000 14.56870000
H 0.66130000 14.75290000 12.74950000
H 0.54040000 15.79690000 13.95650000
H -0.28670000 14.42750000 13.99710000
H -0.25220000 11.82870000 17.95230000
H 1.33920000 11.97130000 17.86050000
H 0.47560000 11.76980000 16.52830000
H -1.70440000 13.88480000 17.47570000
H -1.25180000 13.54780000 15.97810000
H -1.06460000 15.02810000 16.55680000
H 2.07300000 23.75840000 13.62990000
C 2.08600000 22.48280000 12.08140000
I 2.03160000 20.49110000 9.68930000
H -0.33070000 27.43670000 18.30580000
C -1.35220000 25.71870000 18.82760000
C -0.21830000 26.23190000 16.63660000
H 0.67610000 25.86560000 21.10430000
C 1.39310000 27.76890000 21.09060000
C 2.67790000 25.60610000 21.45520000
C 4.27510000 26.37880000 18.39620000
H 2.81650000 26.37950000 16.96710000
C 2.74240000 28.27180000 17.75640000
I 2.21530000 24.01020000 10.66860000
H -2.19870000 25.96660000 18.40030000
H -1.21460000 24.75220000 18.74410000
H -1.38090000 25.96400000 19.77590000
H -1.11170000 26.43160000 16.28680000
H 0.43860000 26.82090000 16.21030000
H 0.00680000 25.29790000 16.44400000
H 1.24890000 27.86690000 22.05510000
H 2.22050000 28.22790000 20.83570000
H 0.63830000 28.16300000 20.60570000
H 2.57130000 25.69940000 22.42490000
H 2.69210000 24.65540000 21.21790000
H 3.51930000 26.02480000 21.17730000
H 4.93700000 26.56760000 17.69870000
H 4.48440000 26.90460000 19.19630000
H 4.29720000 25.42430000 18.61760000
H 1.89350000 28.48100000 17.31390000
H 2.75690000 28.68250000 18.64610000
H 3.48470000 28.62360000 17.22210000
H -1.34470000 7.34270000 21.96060000
C -2.05380000 6.67100000 22.04060000
C -2.47150000 6.54920000 23.48840000
H -2.82440000 6.94360000 21.50000000
H -1.72140000 5.80560000 21.72270000
Si -1.05340000 5.93710000 24.58010000
H -2.71460000 7.46620000 23.80480000
C -3.70540000 5.68250000 23.63390000
C -0.83320000 4.16740000 24.14950000
C -1.57890000 5.99120000 26.39010000
C 0.57720000 6.80790000 24.24770000
H -4.42620000 6.04460000 23.07740000
H -3.98960000 5.67370000 24.57180000
H -3.49840000 4.76870000 23.34670000
C -0.79630000 3.01250000 23.84740000
H -2.50370000 5.61200000 26.42300000
C -1.68430000 7.41580000 26.92790000
C -0.72340000 5.10310000 27.29040000
H 0.57340000 6.63750000 23.26230000
C 0.52810000 8.30460000 24.12950000
C 1.77440000 6.13400000 24.49000000
C -0.79220000 1.63200000 23.48050000
H -2.06970000 7.39730000 27.82880000
H -2.25930000 7.94620000 26.33740000
H -0.79160000 7.81870000 26.96260000
H -1.06690000 5.14000000 28.20740000
H 0.20390000 5.42000000 27.27580000
H -0.75790000 4.17910000 26.96580000
H -0.07700000 8.55500000 23.40050000
H 1.42670000 8.64700000 23.94020000
H 0.20280000 8.68820000 24.97050000
H 1.62220000 5.16750000 24.43430000
H 2.10230000 6.36210000 25.38490000
H 2.43960000 6.39900000 23.82100000
C -0.67000000 1.25280000 22.11380000
C -0.96050000 0.63530000 24.46240000
C -0.68000000 -0.14140000 21.73440000
N -0.55560000 2.23300000 21.19730000
N -1.10090000 1.00900000 25.75310000
C -1.00180000 -0.76390000 24.07230000
C -0.82690000 -1.14790000 22.72430000
N -0.56610000 -0.51650000 20.44510000
C -0.48750000 1.84950000 19.92600000
C -1.25260000 0.04060000 26.64370000
N -1.17340000 -1.74370000 24.99070000
C -0.73590000 -2.52570000 22.39220000
C -0.48170000 0.46050000 19.54250000
C -0.42430000 2.85280000 18.90360000
C -1.36060000 0.36820000 28.03070000
C -1.29110000 -1.35120000 26.25470000
C -0.62490000 -3.71010000 22.20020000
C -0.42890000 0.12660000 18.15700000
C -0.39370000 2.49220000 17.60390000
H -0.40410000 3.77230000 19.14170000
H -1.37110000 1.27950000 28.29920000
C -1.44790000 -0.60610000 28.96510000
C -1.43730000 -2.35530000 27.27020000
Si -0.48290000 -5.53640000 22.08110000
H -0.41160000 -0.78540000 17.89220000
C -0.40310000 1.10480000 17.21150000
I -0.34530000 4.03580000 16.18600000
I -1.42140000 -0.01430000 30.97810000
C -1.50460000 -2.00160000 28.58120000
H -1.48730000 -3.27180000 27.02490000
C 1.31100000 -5.98680000 22.47590000
C -0.85750000 -5.99580000 20.29180000
C -1.75590000 -6.23100000 23.30010000
I -0.41390000 0.49990000 15.20500000
I -1.64200000 -3.53570000 29.99160000
H 1.42470000 -6.96330000 22.29270000
C 1.69700000 -5.74290000 23.93070000
C 2.27180000 -5.22560000 21.55030000
H -0.23670000 -5.45250000 19.72670000
C -0.56790000 -7.46340000 19.96010000
C -2.27540000 -5.58530000 19.88880000
H -2.64870000 -6.10400000 22.86780000
C -1.60640000 -7.73360000 23.52130000
C -1.82210000 -5.47610000 24.63760000
H 2.65690000 -5.90370000 24.04540000
H 1.19240000 -6.35210000 24.50920000
H 1.48990000 -4.81600000 24.17260000
H 3.19670000 -5.45320000 21.78120000
H 2.13550000 -4.26140000 21.65990000
H 2.09620000 -5.47680000 20.61940000
H -0.72900000 -7.62070000 19.00630000
H -1.15620000 -8.04040000 20.49030000
H 0.36710000 -7.66770000 20.17150000
H -2.41290000 -5.77670000 18.93760000
H -2.39580000 -4.62610000 20.04980000
H -2.92520000 -6.09000000 20.42100000
H -2.34310000 -8.05610000 24.08150000
H -0.75310000 -7.91470000 23.96770000
H -1.62730000 -8.19480000 22.65690000
H -2.60770000 -5.77360000 25.14210000
H -1.88930000 -4.51340000 24.46630000
H -1.01150000 -5.65960000 25.15670000
$end

!QSYS wt=96h

$rem
METHOD = PBE50
BASIS = USER1
ECP gen
ECP_FIT true
SCF_GUESS CORE
SCF_ALGORITHM RCA_DIIS
MAX_RCA_CYCLES 100
SYMMETRY = off
SYM_IGNORE = true
UNRESTRICTED = true
CDFTCI = true
CDFTCI_PRINT = 2
CDFT_THRESH = 7
mem_total = 120000
mem_static = 1000
threads 16
$end

$ecp
I 0
I-ECP 3 46
f potential
5
0 1.0715702 -0.0747621
1 44.1936028 -30.0811224
2 12.9367609 -75.3722721
2 3.1956412 -22.0563758
2 0.8589806 -1.6979585
s-f potential
5
0 127.9202670 2.9380036
1 78.6211465 41.2471267
2 36.5146237 287.8680095
2 9.9065681 114.3758506
2 1.9420086 37.6547714
p-f potential
5
0 13.0035304 2.2222630
1 76.0331404 39.4090831
2 24.1961684 177.4075002
2 6.4053433 77.9889462
2 1.5851786 25.7547641
d-f potential
5
0 40.4278108 7.0524360
1 28.9084375 33.3041635
2 15.6268936 186.9453875
2 4.1442856 71.9688361
2 0.9377235 9.3630657


$end

$cdft
0
1.0 1 96
0
1.0 1 96 S

1
1.0 1 96
1
1.0 1 96 S
$end

First guess, try THRESH=12 or 14. Q-Chem default is not appropriate for molecules of this size.

Note that it’s also better to use the </> button for formatted text, otherwise some of your input/output gets interpreted as special characters by this platform.