Sheffield Wednesday are advertising for an Elev8 Energy Drink on their away kit. However, that Energy Drink does actually not exist in real life. They have had an inactive Twitter account since 2017.
The Guardian investigated in 2019:
Sheffield Wednesday’s owner ... is putting more than £1m a year into the club through sponsorships by entities connected to him which are not currently commercially active companies, the Guardian understands.
The English Football League is clearly aware of these sponsorships but is understood not to be concerned about them in relation to its “profitability and sustainability” financial fair play rules, because their value is not excessive.