Problem with RF1 input file

Hello everyone,

I'm starting to use TOUGH2 for the first time.

I tried to run the sample-input file RF1, but the output file gives me an error and I don't know how to proceed. The error message is:

+++++++++   CANNOT FIND PARAMETERS AT ELEMENT *A13 1*          XX(M) = 0.100000E+06 0.000000E+00 0.990000E+00 0.250000E+02
 !!!!!!!!!!! ERRONEOUS DATA INITIALIZATION !!!!!!!!!!           STOP EXECUTION----------
 

Can someone please explain to me what must be  modified in the input?

Barbara