[Wien] clmextrapol_lapw error

[puday at iitk.ac.in]

Dear Prof. Blaha and WIEN2K users,
I am using WIEN2K83 with operating system Linux.I am doing 2D volume
optimization for the case of "Mg" as given example in "package
2Doptimization"

While running  clmextrapol_lapw this kind of error is giving

error: command   /home/WIEN2K83/clmaddsub clmaddsub.def   failed
clmextrapol_lapw has generated a new Mg.clmsum


What should I do now? Please help me.

Regards,
Uday
Dapartment of Physics
IIT, Kanpur