カスタムコマンド実行したらエラー出るんだが

import * as server from "@minecraft/server"
import { system, world, CommandPermissionLevel, CustomCommandStatus, CustomCommandOrigin } from "@minecraft/server";

system.beforeEvents.startup.subscribe(e => {
    const timerCommand = {
        name: "tc:test",
        description: "",
        permissionLevel: server.CommandPermissionLevel.Any,
        mandatoryParameters: [
            { type: server.CustomCommandParamType.Enum, name: "tc:action" }
        ],
        optionalParameters: [
            { name: "tc:min", type: server.CustomCommandParamType.Integer },
            { name: "tc:sec", type: server.CustomCommandParamType.Integer }
        ]
    }
    e.customCommandRegistry.registerEnum("tc:action", ["set", "start"]);

    e.customCommandRegistry.registerCommand(timerCommand, timerCommandFunc)
})

function timerCommandFunc(origin, action, min, sec) {
    if (action === "set") {
        if (sec === 0 && min === 0) {
            let sec = 30;
        }
        const player = origin.sourceEntity;
        let timesec = sec * 20;
        let timeminone = min * 60;
        let timemin = timeminone * 20;
        let time = timesec + timemin;
        player.runCommand(`scoreboard players set time timer ${time}`);
    }
}