DiscordPresence: Discord bot is not showing correct numbers for players

As the title suggest, my discord bot is not showing the correct numbers for the parameters in the .json file. The bot is displaying the messages just
as they look in the config. Any ideas? I have DiscordCore installed and configured. My config below:

{
"Discord Application Bot Token": "i have a bot token here",
"Update Rate (Seconds)": 15.0,
"Presence Messages": [
{
"Message": "on EU Rustease 2x",
"Type": "Game"
},
{
"Message": "{server.players}/{server.players.max} Players",
"Type": "Game"
},
{
"Message": "{server.players.sleepers} Sleepers",
"Type": "Game"
},
{
"Message": "{server.players.stored} Total Players",
"Type": "Game"
},
{
"Message": "Server FPS {server.fps}",
"Type": "Game"
},
{
"Message": "{server.entities} Entities",
"Type": "Game"
},
{
"Message": "{server.players.total} Lifetime Players",
"Type": "Game"
},
{
"Message": "{server.entities} Entities",
"Type": "Game"
},
{
"Message": "{server.players.queued} Queued",
"Type": "Game"
},
{
"Message": "{server.players.loading} Joining",
"Type": "Game"
},
{
"Message": "Wiped: {server.map.wipe.last!local}",
"Type": "Game"
},
{
"Message": "Size: {world.size} Seed: {world.seed}",
"Type": "Game"
}
],
"Discord Extension Log Level (Verbose, Debug, Info, Warning, Error, Exception, Off)": "Info"
}

Please make sure you have installed the dependency to use placeholders as mentioned in the plugin description.