Problem with function prediction using COACH

Hi,
after installing I-TASSER, I ran `download_lib.pl -P true -B true -N true` successfully.

When I run `ls` in the ITLIB directory, I get the following directories:
Bfactor BPOCKET CNT DEP dotProfiles Enzyme GO ligand map MTX nr PDB PSSM receptor SIG stride summary

Next, I run runI-TASSER.pl with -LBS true -EC true -GO false options.

However, COACH fails to work and I am copying the final lines from my out_COACH_model1 file.
There is a line that says "There is something wrong in between the query PDB file and sequence file. -1000 != 0", what does this mean ? I am not providing any pdb file as input and the only input I am providing is a file called seq.fasta.
What am I missing and how do I fix these issues ?
Your help will be greatly appreciated.
Thanks,
ambarishnag.

Following are lines from out_COACH_model1:

run JSD...

=============== COFACTOR starts ================
run CF_sequence1_model1...
Hostname: xxxxxx
Started : Mon Jan 27 00:31:55 MST 2020

Path : /tmp/anag/CH_sequence1_model1

loading libraries...
All the library files were read. Starting COFACTOR predictions at 0.001
There is something wrong in between the query PDB file and sequence file. -1000 != 0
ending time: Mon Jan 27 00:31:57 MST 2020

=============== COFACTOR ends ==================

=============== TM-SITE starts ================
run TM_sequence1_model1...
Hostname: xxxxxx
Started : Mon Jan 27 00:31:59 MST 2020

Path : /tmp/anag/CH_sequence1_model1

run JSD...
JSD_coach.dat missed

=============== TM-SITE ends ===================

=============== S-SITE starts ================
run SS_sequence1.pl locally
Hostname: xxxxxx
Started : Mon Jan 27 00:31:59 MST 2020

Path : /tmp/anag/CH_sequence1_model1

run JSD...
JSD_coach.dat missed

=============== S-SITE ends ==================
COFACTOR LBS prediction fails
TM-SITE fails
S-SITE fails
COACH exit, pleach check
COACH done