Illegal Division by Zero

Dear Administrator,

I tried using I-TASSER (v5;1) and kept recieving the same error message, attached below. Also, I've attached the folder and the I-TASSER files and my imput file. Would you please let me know what I could do to fix this problem please? Thank you in advance.

Your setting for running I-TASSER is:
-pkgdir = /home/vspires/I-TASSER5.1/I-TASSER5.1
-libdir = /home/db/I-TASSER5.1/libdir
-java_home = /usr
-seqname = NOME
-datadir = /home/vspires/I-TASSER5.1/I-TASSER5.1/example
-outdir = /home/vspires/I-TASSER5.1/I-TASSER5.1/example
-runstyle = gnuparallel
-homoflag = real
-idcut = 1
-ntemp = 20
-nmodel = 10
-light = false
-hours = 50
-LBS = false
-EC = false
-GO = false

1. make seq.txt and rmsinp
Your protein contains 24 residues:
> NOME
RFASTSSSSDGYGQYGDYHAHPDV
2.1 run Psi-blast
[blastpgp] WARNING: [000.000] posPurgeMatches: Due to purging near identical sequences, only the query is used to construct the position-specific score matrix

2.2 Predict secondary structure with PSSpred...
2.3 Predict solvent accessibility...
2.4 run pairmod
2.4.1 Use all templates
submit threading jobs first and run pair during threading
3.1 do threading
start gnuparallel threading PPAS
start gnuparallel threading dPPAS
start gnuparallel threading dPPAS2
start gnuparallel threading Env-PPAS
start gnuparallel threading MUSTER
start gnuparallel threading wPPAS
start gnuparallel threading wdPPAS
start gnuparallel threading wMUSTER
Illegal division by zero at /home/vspires/I-TASSER5.1/I-TASSER5.1/example/PPAS_NOME line 354.
Illegal division by zero at /home/vspires/I-TASSER5.1/I-TASSER5.1/example/dPPAS_NOME line 356.
Illegal division by zero at /home/vspires/I-TASSER5.1/I-TASSER5.1/example/dPPAS2_NOME line 355.
Illegal division by zero at /home/vspires/I-TASSER5.1/I-TASSER5.1/example/Env-PPAS_NOME line 352.
ERROR: fscanf failed to read model
can't open model file /home/db/I-TASSER5.1/libdir/summary/modelpsi_0.005_1.dat
ERROR: fscanf failed to read model
can't open model file /home/db/I-TASSER5.1/libdir/summary/modelphi_0.005_1.dat
At line 522 of file zal33.f
Fortran runtime error: End of file
Illegal division by zero at /home/vspires/I-TASSER5.1/I-TASSER5.1/example/MUSTER_NOME line 599.
[blastpgp] WARNING: [000.000] posPurgeMatches: Due to purging near identical sequences, only the query is used to construct the position-specific score matrix

Illegal division by zero at /home/vspires/I-TASSER5.1/I-TASSER5.1/example/wPPAS_NOME line 340.
[blastpgp] WARNING: [000.000] posPurgeMatches: Due to purging near identical sequences, only the query is used to construct the position-specific score matrix

Illegal division by zero at /home/vspires/I-TASSER5.1/I-TASSER5.1/example/wdPPAS_NOME line 348.
ERROR: fscanf failed to read model

Vicente Pires.