Hey guys i have a question about my hardcore server

Can somone help me, please? 'Cuz' when i die in hardcore mode, and click on spectator mode, even with no op or whatsoever you somehow respawn in hardcore mode instead of spectating world... Which is strange I donno what plugin causes this but if u need it then here are my plugins:

(25): ArmorstandPlugin, LoginSecurity, Realistic-Swimming, ClearLag, FarmProtect, ImageOnMap, ViaVersion, PlayerRecorder, floodgate, ViaBackwards, ViaRewind, LuckPerms, ViaVersionStatus, Geyser-Spigot, Vault, WorldEdit, Essentials, ItemEdit, WorldGuard, BetterTeams, Shopkeepers, PhantomEconomy, Bookshelf, PowerRanks, EssentialsSpawn

I'm not sure if it realy is 'cuz' of plugins, but everytime i start new server, withouth plugins yet, i can litteraly spectate world.. however when i downloaded some of these plugins, im able to not die anymore which is strange but I'll leave it to you guys for help... Tnx guys. Im still working in my city server... Tnx for help

hurry up and answer pls cause this is urgent for the server needs

it dosnt work.. I tried deleting the plugins that you said but it dosnt work. Still able to respawn in hardcore

i deleted the worldguard/essentialsspawn all files and restarted... And saw nothin' happen when i do /kill i can still spectate as hardcore

btw im using archlight 1.19.2 cause i want plugins but also mods for my server...

CityBuildServerHMP.aternos.me

that is the ip of my server. @mitankoM