Sun Dec 1 22:27:18 2019 Don Mcfly Williams Cheadle (STEAM_0:0:516164181) used a knight demon suit
Sun Dec 1 22:27:20 2019 Don Mcfly Williams Cheadle (STEAM_0:0:516164181) used a mummy suit
Sun Dec 1 22:27:22 2019 Don Mcfly Williams Cheadle (STEAM_0:0:516164181) was killed by Himself with a suicide trick in the Spawn District
You didn't have your mummy suit equipped. You had a knight demon suit equipped, then tried using your mummy which left you without a suit on.
No bug here.