[Wien] error in lapw2

[berber mo]

Dear all users.
I install the latest version of WIEN2k (13.1)
I try to calculate the optic properties :
1-x kgen (with 20000)
2-x lapw1 -c
3-change fermi in place tot (case.in2c)
4-x lapw2 -c -fermi 
and I get this error
At line 60 of file fermi_tmp_.F (unit = 30, file = 'q.energy')
Fortran runtime error: Bad real number in item 0 of list input
2.2u 0.0s 0:02.29 99.5% 0+0k 0+1904io 0pf+0w
error: command   /home/berber/wien/lapw2c lapw2.def   failed
I waiting for your help
best regards
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