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:
           1195 Jun 21 16:30:00 INCAR
             55 Jun 21 16:30:00 KPOINTS
           4511 Jun 21 16:30:00 POSCAR
         792810 Jun 21 16:30:00 POTCAR
             41 Jun 21 16:30:00 mdlicense.txt
           5560 Jun 21 16:30:00 script
            248 Jun 21 16:30:00 state.dat

Starting VASP at Wed Jun 21 16:30:00 SAST 2023
Error executing VASP Wed Jun 21 16:30:03 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:
           1242 Jun 21 16:30:00 INCAR
             55 Jun 21 16:30:00 KPOINTS
           4511 Jun 21 16:30:00 POSCAR
         792810 Jun 21 16:30:00 POTCAR
            979 Jun 21 16:30:00 VASP-12215.v-hpc-medea.nwu.ac.za-32000
           1242 Jun 21 16:30:00 VASP_INCAR
             55 Jun 21 16:30:00 VASP_KPOINTS
             41 Jun 21 16:30:00 mdlicense.txt
           5560 Jun 21 16:30:00 script
            248 Jun 21 16:30:00 state.dat
            187 Jun 21 16:30:03 stdout