Error messages from runI-TASSER.pl being run on a cluster node using -runstyle gnuparallel

Hi,
I am running runI-TASSER.pl on a cluster using SLURM with the following options

#SBATCH --nodes=1
#SBATCH --ntasks-per-node=16
#SBATCH --error itasser.err

-runstyle gnuparallel
-LBS true
-EC true
-GO false

The code runs to completion and I get the desired output files. However, I also get the following errors in the itasser.err file:

At line 447 of file ppa1.f
Fortran runtime error: Bad real number in item 4 of list input
At line 447 of file ppa1.f
Fortran runtime error: Bad real number in item 4 of list input
At line 1074 of file zal33.f
Fortran runtime error: Bad real number in item 4 of list input
Exception in thread "main" java.lang.NumberFormatException: For input string: "-NAN."
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043)
at sun.misc.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
at java.lang.Float.parseFloat(Float.java:451)
at java.lang.Float.valueOf(Float.java:416)
at c.a(c.java)
at c.main(c.java)
Exception in thread "main" java.lang.NumberFormatException: For input string: "-NAN."
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043)
at sun.misc.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
at java.lang.Float.parseFloat(Float.java:451)
at java.lang.Float.valueOf(Float.java:416)
at e.a(e.java)
at e.main(e.java)
FORTRAN STOP
Useless use of /d modifier in transliteration operator at /scratch/anag/JSD_qury/parse_blast.pl line 314.
Useless use of /d modifier in transliteration operator at ./parse_blast.pl line 314.
7456.80user 824.86system 1:16:35elapsed 180%CPU (0avgtext+0avgdata 3512956maxresident)k
24513344inputs+791672outputs (2major+161024267minor)pagefaults 0swaps

Is this something that I should be concerned about ? And is there a way to fix this issue ?

Thanks,
ambarishnag.