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 Jun 29 11:38:53 INCAR
             55 Jun 29 11:38:53 KPOINTS
           4511 Jun 29 11:38:53 POSCAR
         792810 Jun 29 11:38:53 POTCAR
             41 Jun 29 11:38:53 mdlicense.txt
           5558 Jun 29 11:38:53 script
            248 Jun 29 11:38:53 state.dat

Starting VASP at Thu Jun 29 11:38:53 SAST 2023
Error executing VASP Thu Jun 29 11:38:56 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:
           1134 Jun 29 11:38:53 INCAR
             55 Jun 29 11:38:53 KPOINTS
           4511 Jun 29 11:38:53 POSCAR
         792810 Jun 29 11:38:53 POTCAR
            968 Jun 29 11:38:53 VASP-12686.v-hpc-medea.nwu.ac.za-32000
           1134 Jun 29 11:38:53 VASP_INCAR
             55 Jun 29 11:38:53 VASP_KPOINTS
             41 Jun 29 11:38:53 mdlicense.txt
           5558 Jun 29 11:38:53 script
            248 Jun 29 11:38:53 state.dat
            187 Jun 29 11:38:56 stdout