Starzik.com was a French digital store, the society behind has been officially stopped. Its liquidation has been decided on 27 December 2016 and lasted until March 2019 (according to both verif.com and societe.com).
Users reported issues to purchase music starting from December 2016 and last reported it to work in February 2017 in a thread on a third-party forum.
The last post of Starzik official Twitter account was on 24 November 2016. Their many blogs stopped even earlier.
Last added URL seems to be on 19 April 2017 with edit #44911623 but it doesn't mean the website was still allowing to purchase recordings/releases.
The domain is now reported to spread viruses, see edit #76669630.
Starzik.com WHOIS history shows that the domain name expired on 3 January 2018 and has been bought back by ztomy.com which is known for poisoning old domain names.
Without a precise date of shutdown, I would suggest to set end date to 2017.