Java后端查询DynamoDB时遇InvalidSignatureException问题求助

我是一名软件实习生，正在开发Java后端以查询DynamoDB表。目前我们正在切换到新的表结构，新表包含哈希键和排序键，而旧表仅使用哈希键。以下是查询该表的方法：

public String getCommuterOptions(String crewID) throws JsonProcessingException {
           String hashKey = crewID;
           String rangeKey = "E";
           CommuterOptionsRequest response = dynamoDBMapper.load(CommuterOptionsRequest.class, hashKey, rangeKey, 
DynamoDBMapperConfig.TableNameOverride.withTableNameReplacement(applicationProperties.getProfileTableNm()).config());
           return ServiceUtil.convertErrorObjectToJson(response, "Success");
}

注：此查询的排序键需为"E"。

运行应用时出现如下错误：

"Unable to unmarshall exception response with the unmarshallers provided (Service: 
AmazonDynamoDBv2; Status Code: 400; Error Code: InvalidSignatureException; Request ID:
6LVEKJAFGBBPM3NB7U4LE60P13VV4KQNSO5AEMVJF66Q9ASUAAJG; Proxy: null)"

已尝试的操作：

• 改用.query()方法查询，得到相同错误
• 反复检查系统时间、Secret Key和Access Key，未发现异常
• 旧表的控制器设计逻辑与此方法类似，可正常工作

更新1：项目依赖项如下

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <!-- marked the embedded servlet container as provided -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
         <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>4.0.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-dynamodb</artifactId>
            <version>1.11.330</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.json/json -->
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20180130</version>
        </dependency>

        <!--<dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-text</artifactId>
            <version>1.1</version>
        </dependency>

        <dependency>
            <groupId>com.sun.mail</groupId>
            <artifactId>javax.mail</artifactId>
        </dependency>
          <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.10</version>
        </dependency>-->
</dependencies>

更新2：问题已解决

更新了依赖项，获取了新的Access Key和Secret Key，同时对DTO的哈希键和排序键注解做了细微调整，问题已解决。感谢大家的帮助。

内容的提问来源于stack exchange，提问作者DA_C5_012