I obtain a error information: Exception in thread "main" java.io.FileNotFoundException: seq.svr.psi

I use the script runLOMETs.pl to threading, I have installed java 1.8.0.170 version, and I designated the dictionary of Java when I run the script runLOMETS.pl, such as:
./runLOMETS.pl -libdir /home/yk/work/database/ITLIB -seqname ex -datadir /home/yk/work/paper/I-TASSER/ex -java_home /usr/lib/jvm/java-1.7.0-openjdk-amd64.
Now, the program stops at the wMUSTER step, where java throws a file not found error. Is the file supposed to be generated at a previous step? if so which one?
again, thank you for any help...

starting time: 2018年 05月 31日 星期四 19:56:59 CST
pwd: /home/yk/work/paper/I-TASSER/I-TASSERmod
1. make seq.txt
2.1 run Psi-blast
2.2 run PSSpred
3.1 do threading
/home/yk/work/paper/I-TASSER/ex/init.dPPAS
start serial threading dPPAS
/tmp/yk/LMex
/home/yk/work/paper/I-TASSER/ex/dPPAS_ex
Illegal division by zero at /home/yk/work/paper/I-TASSER/ex/dPPAS_ex line 356.
hostname: yk
starting time: 2018年 05月 31日 星期四 19:56:59 CST
pwd: /tmp/yk/LMex
running zalign .....

/home/yk/work/paper/I-TASSER/ex/init.MUSTER
start serial threading MUSTER
/tmp/yk/LMex
/home/yk/work/paper/I-TASSER/ex/MUSTER_ex
Illegal division by zero at /home/yk/work/paper/I-TASSER/ex/MUSTER_ex line 599.
hostname: yk
starting time: 2018年 05月 31日 星期四 19:57:00 CST
pwd: /tmp/yk/LMex
running Psi-blast .....
running zalign .....

/home/yk/work/paper/I-TASSER/ex/init.wdPPAS
/home/yk/work/paper/I-TASSER/ex/init.wPPAS
/home/yk/work/paper/I-TASSER/ex/init.wMUSTER
start serial threading wMUSTER
/tmp/yk/LMex
/home/yk/work/paper/I-TASSER/ex/wMUSTER_ex
Exception in thread "main" java.io.FileNotFoundException: seq.svr.psi (没有那个文件或目录)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.(FileInputStream.java:146)
at java.io.FileInputStream.(FileInputStream.java:101)
at java.io.FileReader.(FileReader.java:58)
at e.a(e.java)
at e.main(e.java)
Illegal division by zero at /home/yk/work/paper/I-TASSER/ex/wMUSTER_ex line 570.
hostname: yk
starting time: 2018年 05月 31日 星期四 19:58:27 CST
pwd: /tmp/yk/LMex
running Psi-blast .....
running Psi-blast .....

/home/yk/work/paper/I-TASSER/ex/init.dPPAS2
start serial threading dPPAS2
/tmp/yk/LMex
/home/yk/work/paper/I-TASSER/ex/dPPAS2_ex
Illegal division by zero at /home/yk/work/paper/I-TASSER/ex/dPPAS2_ex line 355.
hostname: yk
starting time: 2018年 05月 31日 星期四 20:03:32 CST
pwd: /tmp/yk/LMex
running zalign .....

/home/yk/work/paper/I-TASSER/ex/init.PPAS
start serial threading PPAS
/tmp/yk/LMex
/home/yk/work/paper/I-TASSER/ex/PPAS_ex
Illegal division by zero at /home/yk/work/paper/I-TASSER/ex/PPAS_ex line 354.
hostname: yk
starting time: 2018年 05月 31日 星期四 20:03:33 CST
pwd: /tmp/yk/LMex
running zalign .....

/home/yk/work/paper/I-TASSER/ex/init.Env-PPAS
start serial threading Env-PPAS
/tmp/yk/LMex
/home/yk/work/paper/I-TASSER/ex/Env-PPAS_ex
Illegal division by zero at /home/yk/work/paper/I-TASSER/ex/Env-PPAS_ex line 352.
hostname: yk
starting time: 2018年 05月 31日 星期四 20:03:34 CST
pwd: /tmp/yk/LMex
running zalign .....

only 2 threading programs have output, please check threading programs
Jobs finished!