tls-ticketbleed script fails scanning all ports

Hello,
using the tls-ticketbleed in the all port mode of nmap the script fails.

running nmap  --script tls-ticketbleed -Pn -p 443 host
will run fine.
But call nmap  -d --script +tls-ticketbleed -Pn -p 443 host
will result in:
NSE: Starting tls-ticketbleed against host (address).
NSE: tls-ticketbleed against host (address) threw an error!
/usr/bin/../share/nmap/scripts/tls-ticketbleed.nse:118: bad argument #1
to 'pcap_open' (string expected, got nil)
stack traceback:
	[C]: in method 'pcap_open'
	/usr/bin/../share/nmap/scripts/tls-ticketbleed.nse:118: in upvalue
'is_vuln'
	/usr/bin/../share/nmap/scripts/tls-ticketbleed.nse:350: in function
</usr/bin/../share/nmap/scripts/tls-ticketbleed.nse:321>
	(...tail calls...)

OS: CentOS 7.3
Nmap: 7.50

Thanks for any help.
Frank
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