Kamara, 25, has been banned by UEFA for three games for assaulting another player following the incident during Rangers' 2-0 defeat to Slavia Prague last month.
In a statement issued through his lawyer Aamer Anwer, Kamara accused Slavia defender Ondrej Kudela of directing a racial slur at him.
Rangers fans have broken coronavirus lockdown rules in Scotland by gathering in numbers outside Ibrox Stadium in Glasgow and setting off flares.