[Pw_forum] lambda.x crash

[yelena]

Hello!
I'm trying to do electron phonon calculation on monolayer graphene. 
When I try to calculate Tc using lambda.x i get this error:

At line 78 of file lambda.f90 (unit = 4, file = 'fort.4')
Fortran runtime error: End of file

and empty file fort.4 shows up in my working folder.

Here is lambda.in i use.
50  0.01  1
     10
        0.0000000  0.0000000  0.0000000   1.00
        0.1250000  0.0721688  0.0000000   6.00
        0.2500000  0.1443376  0.0000000   6.00
        0.3750000  0.2165064  0.0000000   6.00
        0.5000000  0.2886751  0.0000000   3.00
        0.1250000  0.2165064  0.0000000   6.00
        0.2500000  0.2886751  0.0000000  12.00
        0.3750000  0.3608439  0.0000000  12.00
        0.2500000  0.4330127  0.0000000   6.00
        0.3750000  0.5051815  0.0000000   6.00
elph. 0.0000000  0.0000000  0.0000000   1.00
elph. 0.1250000  0.0721688  0.0000000   6.00
elph. 0.2500000  0.1443376  0.0000000   6.00
elph. 0.3750000  0.2165064  0.0000000   6.00
elph. 0.5000000  0.2886751  0.0000000   3.00
elph. 0.1250000  0.2165064  0.0000000   6.00
elph. 0.2500000  0.2886751  0.0000000  12.00
elph. 0.3750000  0.3608439  0.0000000  12.00
elph. 0.2500000  0.4330127  0.0000000   6.00
elph. 0.3750000  0.5051815  0.0000000   6.00

Is something missing in input?

Thank you all!
Jelena Pesic
PhD Student, Institute of Physics,
Belgrade, Serbia