I've been working a little bit to add missing KHL sets to the database and fixing errors but I don't know what to do with this one.
This entry looks like it's a mix of two separate products that should be 2012-13 KHL All-Star Game and 2014 KHL Gold Collection. There is no 2013-14 All-Star game set. The cards listed as the base set here are actually an insert set for the 2014 Gold Collection and are already correctly listed under that set here: https://www.tcdb.com/Checklist.cfm/sid/236104 so those cards are doubled in the database. The inserts listed here are correct checklists for the 2012-13 All-Star game set but the base cards for that set are currently nowhere. There is also a 2011-12 All-Star Game set which is correct in the database as far as I can see but it's listed as 2012 so it appears under the wrong season.
Additionally it looks like the Coaches inserts that are part of the 2012-13 All-Star game set are listed both here and on the 2012-13 KHL Basic set so they are also listed twice. No doubt this is because the cards say 2012-13 which has led people to assume they can't be part of this set. I'd be happy to do the checklists on all these sets if the entries could be corrected.
Complete info with checklists and scans on all Russian hockey sets available here (in Russian): https://www.laststicker.ru/cards/s/hockey_russia/