Error submitting to PBS: qsub: submit error (Maximum number of jobs already in queue MSG=total number of jobs in queue exceeds the queue limit: user medea@mufasa.nwu.ac.za, queue chem-2)

Files:
           1088 Jul 06 07:45:15 INCAR
             55 Jul 06 07:45:15 KPOINTS
           4694 Jul 06 07:45:15 POSCAR
         792810 Jul 06 07:45:15 POTCAR
             41 Jul 06 07:45:15 mdlicense.txt
           5560 Jul 06 07:45:15 script
            248 Jul 06 07:45:15 state.dat

Starting VASP at Thu Jul 06 07:45:16 SAST 2023
Error executing VASP Thu Jul 06 07:45:19 SAST 2023: error renaming "OUTCAR": no such file or directory

error renaming "OUTCAR": no such file or directory
    while executing
"file rename -force OUTCAR VASP_OUTCAR"

error copying "CONTCAR": no such file or directory
    while executing
"file copy -force CONTCAR VASP_CONTCAR"

Files:
           1135 Jul 06 07:45:16 INCAR
             55 Jul 06 07:45:15 KPOINTS
           4694 Jul 06 07:45:15 POSCAR
         792810 Jul 06 07:45:15 POTCAR
            979 Jul 06 07:45:16 VASP-13107.v-hpc-medea.nwu.ac.za-32000
           1135 Jul 06 07:45:16 VASP_INCAR
             55 Jul 06 07:45:15 VASP_KPOINTS
             41 Jul 06 07:45:15 mdlicense.txt
           5560 Jul 06 07:45:15 script
            248 Jul 06 07:45:15 state.dat
            187 Jul 06 07:45:19 stdout