tmVar2sever running error

[xuehaoliu92]

Hi I am facing an error after all the installation of GNormPlusJava and tmVarJava. ps: all server running normally
In the tmVar log, the error is:

Starting tmVar 2.0 Service at 192.168.0.38:18896
Reading POS tagger model from lib/taggers/english-left3words-distsim.tagger ... done [0.7 sec].
Loading tmVar : Processing Time:0.779sec
Ready
input/3da0b63ecd8efcc2a76bbe02df6fc42b9003c94c0662a9223396c2f7-Thread-3.PubTator - (PubTator format) : Processing ...
Exception in thread "main" java.lang.IllegalArgumentException: Empty command
at java.base/java.lang.Runtime.exec(Runtime.java:408)
at java.base/java.lang.Runtime.exec(Runtime.java:311)
at tmVarlib.PostProcessing.toPostMEoutput(PostProcessing.java:1686)
at kr.ac.korea.dmis.tmVar2.tag(tmVar2.java:177)
at kr.ac.korea.dmis.tmVar2Server.run(tmVar2Server.java:42)
at kr.ac.korea.dmis.tmVar2Server.(tmVar2Server.java:30)
at kr.ac.korea.dmis.tmVar2Server.main(tmVar2Server.java:72)

It seems that there is an error in tmVar2Server. It is failed to transfer the text in input folder to output folder. After this error, the tmVar server is down.
Could you please give me some hint of solving this problem?
Thanks.