I am trying to optimize a surface with molecule on top. 

I got this error , I ran agin and I got another error but still no convergance .. any clue ?

Current total energy, E     =  -107260.9694330     eV
Current free energy (E-TS)  =  -107261.8954569     eV
(energies not corrected for finite basis set)

NB est. 0K energy (E-0.5TS)      =  -107261.4324450     eV

(SEDC) Total Energy Correction : -0.323201E+03 eV

Dispersion corrected current total energy*, Ecor    =  -107584.1705741     eV
Dispersion corrected current free energy* (Ecor-TS) =  -107585.0965979     eV
NB dispersion corrected current est. 0K energy* (Ecor-0.5TS) =  -107584.6335860     eV
 ********************************************************
 Warning: electronic minimisation did not converge during
          finite basis set correction.
 ********************************************************
Checkpoint file cannot be written.
Error calculate_finite_basis : Convergence failed when doing finite basis set correction.
Current trace stack:
castep_calculate_finite_basis_corr
check_elec_ground_state
castep_find_groundstate
castep
Abort(1) on node 3 (rank 3 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, 1) - process 3
Abort(1) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0