Error submitting to PBS: qsub: submit error (Job exceeds queue resource limits MSG=cannot locate feasible nodes (nodes file is empty or all systems are busy))

Files:
           1176 Jun 07 20:39:11 INCAR
             55 Jun 07 20:39:11 KPOINTS
           4511 Jun 07 20:39:11 POSCAR
         792810 Jun 07 20:39:11 POTCAR
             41 Jun 07 20:39:11 mdlicense.txt
           5518 Jun 07 20:39:11 script
            247 Jun 07 20:39:11 state.dat

Starting VASP at Wed Jun 07 20:39:12 SAST 2023
Error executing VASP Wed Jun 07 20:39:15 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:
           1223 Jun 07 20:39:12 INCAR
             55 Jun 07 20:39:11 KPOINTS
           4511 Jun 07 20:39:11 POSCAR
         792810 Jun 07 20:39:11 POTCAR
            971 Jun 07 20:39:12 VASP-9145.v-hpc-medea.nwu.ac.za-32000
           1223 Jun 07 20:39:12 VASP_INCAR
             55 Jun 07 20:39:11 VASP_KPOINTS
             41 Jun 07 20:39:11 mdlicense.txt
           5518 Jun 07 20:39:11 script
            247 Jun 07 20:39:11 state.dat
            159 Jun 07 20:39:15 stdout