Скрипт Dyndns Netcup

Привет, может кто-то помочь мне подправить скрипт? Мне нужен скрипт с Dyndns для netcup.  
https://www.netcup-wiki.de/wiki/API_Clients#Dynamisches_DNS  
https://github.com/hazzl/netcup-ddns  

:global DOMAIN = "DOMAIN"  
:global CUSTOMERNO = "NUMBER"  
:global APIKEY = "KEY"  
:global APIPASSWD = "APIPASS"  

:global cjson = require "luci.jsonc"  
:global https = require "ssl.https"  
:global ltn12 = require "ltn12"  
:global socket = require "socket"  
:global http = socket.http  

global function send_command(coms, ids)  
global postbod  
global resbod = {}  
global post = {}  
coms.param.apikey = APIKEY  
coms.param.customernumber = CUSTOMERNO  
if (ids) then  
coms.param.apisessionid = ids  
end  
postbod = cjson.stringify(coms)  
post = {  
method = "POST",  
url = "https://ccp.netcup.net/run/webservice/servers/endpoint.php?JSON",  
headers = {  
["content-length"] = tostring(#postbod)
},  
source = ltn12.source.string(postbod),  
sink = ltn12.sink.table(resbod)  
}  
https.request(post)  
return cjson.parse(table.concat(resbod))  
end  

global function clear()  
global t = {}  
t.param = {}  
return t  
end  

global com, id, response, ip4, modified  

response = {}  
http.request{url = "http://v4.ident.me", sink = ltn12.sink.table(response)}  
ip4 = table.concat(response)  
if ip4 == "" then -- что-то пошло совсем не так. Сдаюсь.  
return  
end  

response = socket.dns.toip(DOMAIN)  
if ip4 == response then  
return  
end  

global logfile = io.open("ddns.log", "a")  
io.output(logfile)  
io.write(os.date() .. " новый IP " .. ip4 .. "\n")  

com = clear()  
com.action = "login"  
com.param.apipassword = APIPASSWD  
response = send_command(com, id)  
id = response.responsedata.apisessionid  

com = clear()  
com.action = "infoDnsRecords"  
com.param.domainname = DOMAIN  
response = send_command(com, id)  
modified = false  
for _, v in pairs(response.responsedata.dnsrecords) do  
if v.type == "A" and v.hostname ~= "mail" and v.destination ~= ip4 then  
v.destination = ip4  
modified = true  
end  
end  

if modified then  
com = clear()  
com.action = "updateDnsRecords"  
com.param.domainname = DOMAIN  
com.param.dnsrecordset = response.responsedata  
response = send_command(com, id)  
print(response.longmessage)  
else  
print("все записи актуальны")  
end  

com = clear()  
com.action = "logout"  
response = send_command(com, id)  
io.close(logfile)