Why nil

[scratcher911]

testtable[group]["name"] = name 

I've made the table like

testtable = {} 

Error:

attempt to index field '?' (a nil value)

[Castillo]

Show us what 'group' is.

[scratcher911]

local group = getElementData(source, "WL") 

it should return number

[Castillo]

Have you tried checking what: testtable[group] returns?

[scratcher911]

nope.

I tryed and returns nil

[Castillo]

Which means your script will not work, as testtable[group] returns nil.

You could do:

if ( not testtable[group] ) then 
     testtable[group] = { } 
end 

[scratcher911]

thanks

[Castillo]

You're welcome.