[Wien] LOPW error

[Hajar Nejati]

dear dr. Blaha and  wien2k users
I have maked a graphane structure with atom by atom positions in unit cell (for core hole approximate).
when I run scf, this error appears:

**  Error in Parallel LAPW1
Error in LAPW1
 'LOPW' - Plane waves exhausted 
Error in LAPW1
 'LOPW' - Plane waves exhausted 

Error in LAPW1
 'LOPW' - Plane waves exhausted 


what is its means? what is wrong?
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