i just crashed my server with a comand block accidentaly

[Gold_Arch]

I used a command block to make it so when i throw a snowball a firecharge appears but it ended up making infinite fire charges and crashing my game. I reset the server and rejoin but im still lagged out what on earth happened and what do i do?
ive tried;
reseting the server,

changing the seed,

comand blocks are deactivated,

 

[Residents]

navigate to settings on your panel and disable command blocks

[Gold_Arch]

16 hours ago, Residents said:

navigate to settings on your panel and disable command blocks

i allready did that.
i also tried /kill @e

[notminehut]

Once disabling command blocks on the dashboard make sure to restart your server.