UBE keep on in P mode in WSj but not running is Enterprise server.

Hi,
It is seen that sometime the report R30460 is keeping in P mode in WSJ but there is no running report on Enterprise server.

The JDE.log for the report says what pasted below:

30127    Tue Jul  3 16:21:08.758464    runbatch.c319
    INITIALIZING RUNBATCH job: 620691

30127/738 MAIN_THREAD                           Tue Jul  3 16:21:08.790648    ipcmisc.c299
    process 30127 <E897SYS/PRINTUBE> registered in entry 39

30127/738 MAIN_THREAD                           Tue Jul  3 16:21:08.790968    lanchube.c3252
    Error : unlink temporary file

30127/738 MAIN_THREAD                           Tue Jul  3 16:21:08.791160    runbatch.c464
    Startup for User=10001098, Env=JPD810, Role=INQUIRY, Job#=620691

30127/738 MAIN_THREAD                           Tue Jul  3 16:21:10.652600    zdrv.cpp328
    Initializing the Z Driver

30127/738 MAIN_THREAD                           Tue Jul  3 16:21:10.652848    zdrv.cpp342
    Gettting user data from hEnv