Nantes have been fined for the use of flares during tributes to Emiliano Sala in January.
Fans of the French club set off flares and held up a giant banner of the striker during a clash against Saint-Etienne – the first fixture after he disappeared last month.
And the French Football League have since fined the Ligue 1 side 16,000 euros (£14,400) for the incident due to the use of smoke.
Sala died when the light aircraft carrying him from Nantes to Cardiff crashed into the English Channel on January 21, just two days after he completed a £13million move to the Welsh capital.
In the first game following the confirmation of his death, against Nimes, Nantes let off pyrotechnics to pay tribute to the 28-year-old.
LATEST FOOTBALL NEWS
READY TO SIGN
Man United make breakthrough in Rashford contract negotiations – reports
Another European giant joins race to sign Hudson-Odoi, who remains benched
Alan Brazil slams Rangers fans who hurled ‘sectarian’ abuse at Steve Clarke
Leeds' remarkable season could become the next football-inspired documentary
Man United will have to pay £8.7m as another Anthony Martial clause adds up
Sadio Mane's house burgled during Champions League clash with Bayern Munich
Hilarious talkSPORT caller: 'If Liverpool score three, Bayern have to score six'
‘VAR got it wrong’ – Ex-Premier League ref slams tech after Champions League shambles
The FFL have also issued a smaller fine of 4,500 euros (£3,900) for the incident during the Nimes game for ‘use of pyrotechnics and throwing objects’.
Sala scored 48 goals in 133 games for Nantes, including 12 Ligue 1 goals this season before he agreed to join Cardiff.
Meanwhile, pilot David Ibbotson, the only other person on board the flight, is still missing.
Paris Saint-Germain and France star Kylian Mbappe has donated £27,000 to help fund the search for the missing pilot.