🐞 fix(百家争鸣): 百家争鸣抽卡不存在活动时的bug

game-server/app/services/activity/authorGachaService.ts

@@ -8,6 +8,7 @@ import { getActivityById } from "./activityService";
 
 export async function getPlayerAuthorGachaData(activityId: number, serverId: number, roleId: string) {
     let activityData = await getActivityById(activityId);
+    if(!activityData) return
     let createTime = await getRoleCreateTime(roleId);
     let serverTime = await getServerCreateTime(serverId);
     let playerData = new AuthorGachaData(activityData, createTime, serverTime);