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:
           1174 Aug 19 08:25:45 INCAR
             55 Aug 19 08:25:45 KPOINTS
           3045 Aug 19 08:25:45 POSCAR
         792810 Aug 19 08:25:45 POTCAR
             41 Aug 19 08:25:45 mdlicense.txt
           5054 Aug 19 08:25:45 script
            226 Aug 19 08:25:45 state.dat

Starting VASP at Fri Aug 19 08:25:45 SAST 2022
Error executing VASP Fri Aug 19 08:25:49 SAST 2022: 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:
           1221 Aug 19 08:25:45 INCAR
             55 Aug 19 08:25:45 KPOINTS
           3045 Aug 19 08:25:45 POSCAR
         792810 Aug 19 08:25:45 POTCAR
            981 Aug 19 08:25:45 VASP-1172.v-hpc-medea.nwu.ac.za-32000
           1221 Aug 19 08:25:45 VASP_INCAR
             55 Aug 19 08:25:45 VASP_KPOINTS
             41 Aug 19 08:25:45 mdlicense.txt
           5054 Aug 19 08:25:45 script
            226 Aug 19 08:25:45 state.dat
            187 Aug 19 08:25:48 stdout