diff --git a/README.md b/README.md
index f3faacf8..30eef33d 100644
--- a/README.md
+++ b/README.md
@@ -953,7 +953,7 @@ proxy_request_buffering off;
 <div align="center">
 
 <a href="https://afdian.com/a/claude-relay-service" target="_blank">
-  <img src="https://img.shields.io/badge/☕_请我喝杯咖啡-爱发电-946ce6?style=for-the-badge&logo=buy-me-a-coffee&logoColor=white" alt="Sponsor">
+  <img src="https://img.shields.io/badge/请我喝杯咖啡-爱发电-946ce6?style=for-the-badge&logo=buy-me-a-coffee&logoColor=white" alt="Sponsor">
 </a>
 
 <table>
diff --git a/src/routes/admin.js b/src/routes/admin.js
index a0b410dc..1d7c823f 100644
--- a/src/routes/admin.js
+++ b/src/routes/admin.js
@@ -718,7 +718,7 @@ async function calculateKeyStats(keyId, timeRange, startDate, endDate) {
     allTimeCost = parseFloat((await client.get(totalCostKey)) || '0')
 
     // 获取 API Key 配置信息以判断是否需要窗口数据
-    const apiKey = await redis.getApiKeyById(keyId)
+    const apiKey = await redis.getApiKey(keyId)
     if (apiKey && apiKey.rateLimitWindow > 0) {
       const costCountKey = `rate_limit:cost:${keyId}`
       const windowStartKey = `rate_limit:window_start:${keyId}`