This is the error message:
Message from des/read_particle_input.f:100
Reading DEM particle input file version: 3.0
Detecting number of columns from the first line in the data.
Expected number of columns = 12
Error from des/read_particle_input.f:4243
Detected number of columns = 11
Error 1150: Incorrect number of columns in particle_input.dat file.
Please verify the data matches the following column layout:
Variable: Column(s)
Coordinates (x,y,z): 1 - 3
Phase ID: 4
Diameter: Not needed (uniform value)
Density: Not needed (uniform value)
Velocity (u,v,w): 5 - 7
Temperature: Not needed (Energy equation is not solved)
Species: Not needed (Species equation(s) are not solved)
User scalars: 8 - 8
It is expecting 12 columns because you turned on user scalar tracking (one scalar).
You need to provide initial data for each tracked scalar. Here you need to add column 8.