By Zahra Khaliq A member of staff aboard a cruise ship that was on a 120-day voyage around the world is missing at sea. Ambassador Cruise Line’s Ambience ship was heading from Lisbon, Portugal, back to the UK in its final journey of the 120-day trip when the crew member was reported missing. The British cruise line said in a statement that the ship had initially turned back to “retrace her route to the ship’s position when the crew member was last seen”. However, it has since been “released by coastguard authorities from the search” and is “continuing on her original course back to the UK”. Ac…