Incorrect pair coefficient args

Respected lammps users, I am using lammps version 3 march, 2020. I am trying to melt silver using eam potential. here is my script

‘’'# set potential function and parameters

units metal
dimension 3
boundary p p p
atom_style atomic

neighbor 0.5 bin
neigh_modify delay 5

region simbox block -65 107 -1 299 -89 195 units box

lattice fcc 4.09

region silver block -16 59 44 102 30 80 side in units box

create_box 1 simbox

create_atoms 1 region silver

group silvermetal region silver

group silvermetal type 1

mass 1 107.8

pair_style eam

pair_coeff 11 11 eam Ag_u3.eam

thermo 1
thermo_style custom step lx ly lz press pxx pyy pzz pe temp
thermo_modify norm yes
thermo_modify lost ignore flush yes

#minimize 1.0e-21 1.0e-21 10000 10000
timestep 0.001

velocity silvermetal create 1500 12345 mom no rot no
run 0
velocity silvermetal scale 1500

fix 1 silvermetal nvt temp 1500 1500 0.1

dump movie all atom 100 m.meltsilver
run 1100000 ‘’’

I am getting the error “incorrect args for pair coefficient” but when I use the same potential to silicon- silver wetting interaction it works well as below

‘’’ pair_style hybrid eam lj/cut 12
pair_coeff 1 1 none
pair_coeff 22 22 eam Ag_u3.eam
pair_coeff 1 2 lj/cut 0.03 3 ‘’’

Thanks for cooperation

When you are not using the hydrid pair style, you should write

pair_coeff 1 1 Ag_u3.eam

and not

pair_coeff 1 1 eam Ag_u3.eam