Information missing (null)

I'm trying to find a cruise with a good dollar per night ratio. I'm getting some results but a lot is missing as well ...

Here is a row with all fields filled in:
1518711088-1036 https://www.cheapcruises.com/results.do?clp=1&sort_by=7&places=ALL&days=ALL&Month=ALL&dd=ALL&fd=2&c=ALL&v=ALL&p=ALL&shoppingZipCode=&IncludeSeniorRates=false&IncludeAlumniRates=false&index=1 158 See Details https://www.cheapcruises.com/sc.do?tab=media&i=906423&c=14&v=728&month=all 68 90 104 10 Night Western Mediterranean Barcelona, Spain Savona (Genoa), Italy • April 2018 • 679 899 1 1

The 1, 1 at the end is probably a mistake in the regex ... but at least some information is retreived.

Here is a row with information missing:
1518711088-208 https://www.cheapcruises.com/results.do?clp=1&sort_by=7&places=ALL&days=ALL&Month=ALL&dd=ALL&fd=2&c=ALL&v=ALL&p=ALL&shoppingZipCode=&IncludeSeniorRates=false&IncludeAlumniRates=false&index=1 null null null null null null null null null null null null null

Url: https://www.cheapcruises.com/results.do?clp=1&sort_by=7&places=ALL&days=ALL&Month=ALL&dd=ALL&fd=2&c=ALL&v=ALL&p=ALL&shoppingZipCode=&IncludeSeniorRates=false&IncludeAlumniRates=false&index=1

Sitemap:
{"_id":"cruise1","startUrl":["https://www.cheapcruises.com/results.do?clp=1&sort_by=7&places=ALL&days=ALL&Month=ALL&dd=ALL&fd=2&c=ALL&v=ALL&p=ALL&shoppingZipCode=&IncludeSeniorRates=false&IncludeAlumniRates=false&index=1"],"selectors":[{"id":"cruise","type":"SelectorElementClick","selector":"div.wth2-resultsItinContainer","parentSelectors":["_root"],"multiple":true,"delay":"2000","clickElementSelector":"div.ui-block-c a.ui-btn","clickType":"clickMore","discardInitialElements":false,"clickElementUniquenessType":"uniqueHTMLText"},{"id":"suite night","type":"SelectorText","selector":"div#suitePriceSection1.wth2-bucketPriceSection div.wth2-bucketPerNightPrice","parentSelectors":["cruise"],"multiple":false,"regex":"\d+","delay":0},{"id":"details","type":"SelectorLink","selector":"a#seeDetail1.ui-btn","parentSelectors":["cruise"],"multiple":false,"delay":0},{"id":"interior night","type":"SelectorText","selector":"div#interiorPriceSection1.wth2-bucketPriceSection div.wth2-bucketPerNightPrice","parentSelectors":["cruise"],"multiple":false,"regex":"\d+","delay":0},{"id":"oceanview night","type":"SelectorText","selector":"div#oceanviewPriceSection1.wth2-bucketPriceSection div.wth2-bucketPerNightPrice","parentSelectors":["cruise"],"multiple":false,"regex":"\d+","delay":0},{"id":"balcony night","type":"SelectorText","selector":"div#balconyPriceSection1.wth2-bucketPriceSection div.wth2-bucketPerNightPrice","parentSelectors":["cruise"],"multiple":false,"regex":"\d+","delay":0},{"id":"title","type":"SelectorText","selector":"h2#brochureName1.wth2-brochureName","parentSelectors":["cruise"],"multiple":false,"regex":"","delay":0},{"id":"depart from","type":"SelectorText","selector":"span#departurePort1","parentSelectors":["cruise"],"multiple":false,"regex":"","delay":0},{"id":"ports","type":"SelectorText","selector":"div#portsOfCall1.wth2-resultsPortsOfCall li.wth2-portsOfCallListLi","parentSelectors":["cruise"],"multiple":false,"regex":"","delay":0},{"id":"dates","type":"SelectorText","selector":"span#sailingDateList1.wth2-resultsPortsList li.wth2-sailingListDatesLi","parentSelectors":["cruise"],"multiple":false,"regex":"","delay":0},{"id":"interior price","type":"SelectorText","selector":"div#interiorPriceSection1.wth2-bucketPriceSection div.wth2-bucketPrice","parentSelectors":["cruise"],"multiple":false,"regex":"\d+","delay":0},{"id":"oceanview price","type":"SelectorText","selector":"div#oceanviewPriceSection1.wth2-bucketPriceSection div.wth2-bucketPrice","parentSelectors":["cruise"],"multiple":false,"regex":"\d+","delay":0},{"id":"balcony price","type":"SelectorText","selector":"div#balconyPriceSection1.wth2-bucketPriceSection div.wth2-bucketPrice","parentSelectors":["cruise"],"multiple":false,"regex":"\d+","delay":0},{"id":"suite price","type":"SelectorText","selector":"div#suitePriceSection1.wth2-bucketPriceSection div.wth2-bucketPrice","parentSelectors":["cruise"],"multiple":false,"regex":"\d+","delay":0}]}