Script is already running or disabled

[Thomas]

Hi
a week ago my scheduled script has stopped working. If I try to start it manually I get messagebox saying "Script is already running or disabled".

I don't believe the message but:
Script is not disabled.
Can I check if the script is already running?
Can I kill the running script?

The script is used for sending data to Weather Underground PWS site. It's extremely simple. I don't see any possibility of endless loop here.

Code:

require("user.ecl_weather")

lt_url_table = {
dateutc=os.date("!%F %T"),
action="updateraw",
ID="XXXXXX",
PASSWORD="xxxxx",
softwaretype="PWS Jung 2225WSU",
windspeedmph=grp.getvalue('7/2/25')*2.237, -- m/s to mph multiply by 2.237
humidity=grp.getvalue('7/2/2'),
tempf=celsius_to_fahrenheit(grp.getvalue('7/2/1')),
solarradiation=grp.getvalue('7/2/24'),
winddir=grp.getvalue('7/2/19'),
baromin=(grp.getvalue('7/2/12')*100)/3386.388667, -- 1 pascal = 0.000295299830714 inches of mercury inverted because of rounding issue 3386,388667
dewptf=celsius_to_fahrenheit(grp.getvalue('7/2/23'))
}
ls_url="https://weatherstation.wunderground.com/weatherstation/updateweatherstation.php?"..url_encode(lt_url_table)

https = require("ssl.https")
https.request (ls_url)