Problem with socket.http

[baggins]

I have a script running to enter data in an influx database. This script suddenly stopped working. I copied part of the script for testing and I have the impression there is something wrong with the socket.http library.
I reduced the script to the following:

Code:

require 'ltn12'
require('socket.http')

socket.http.TIMEOUT = 15

This generates an error: attempt to index field 'http' (a nil value). This code is in the original script which has been running for years.

At the same time a third party software has started giving the error:

attempt to call field 'tcp' ( a nil value).

i have already rebooted the system.

What could be wrong here?

Thanks.