diff --git a/src/plugin.ts b/src/plugin.ts
index 5622589..0043862 100644
--- a/src/plugin.ts
+++ b/src/plugin.ts
@@ -91,13 +91,14 @@ export default class RedisStorage implements IPluginStorage<RedisConfig> {
   public async searchV1(query): Promise<any> {
     this.logger.debug({ query }, "searchV1 query: @{query}");
     // Redis-search treats hyphen as separator, refs https://forum.redis.com/t/query-with-dash-is-treated-as-negation/119
-    const text = query.text.replace(/-/g, ' ').trim();
+    const text = (query.text || "").replace(/-/g, ' ').trim();
     if (!text) return [];
     const offset = query.from || 0;
     const num = query.size || 250;
     try {
       const result: any = await this.redisClient.call("FT.SEARCH", "ve-pkg-stat-idx", text, "return", "1", "stat", "LIMIT", String(offset), String(num));
       const searchResult: any = [];
+      if (result.length <= 1) return [];
       for (let i = 2; i < result.length; i += 2) {
         const stat = JSON.parse(result[i][1]);
         searchResult.push({
@@ -120,6 +121,7 @@ export default class RedisStorage implements IPluginStorage<RedisConfig> {
       return searchResult;
     } catch (error) {
       this.logger.error(error, "searchV1 error: @{error}");
+      return [];
     }
   }