So usually the error means that the number of bond types you mentioned in the data does not tally with the coefficients you have provided in the input/data file.
So you have provided two bond types in the input file. But there is only one bond type in the data file.
bond_coeff 1*2 800.0 1.44
You have set bondcoeffs for two bond types but in the data file ]
1 bond types