问COS 上传文件 异常 ：exception.CosClientException: null？

ERROR com.qcloud.cos.http.DefaultCosHttpClient failed to execute http request, due to client exception, httpRequest: endpoint: ******, resourcepath: /U/q/34ab5fe1-ee7b-4549-ae19-a6ae16d73a75.png, httpMethod: PUT, headers { Authorization : q-sign-algorithm=sha1&q-ak=AKIDBBwRhhMxHL9hz1sJOGuIRKyOZU9ZRecL&q-sign-time=1604830833;1604834433&q-key-time=1604830833;1604834433&q-header-list=content-length;content-md5;host&q-url-param-list=&qsignature=************, User-Agent : cos-java-sdk-v5.6.31/Linux/jdk-11.0.6/OpenJDK 64-Bit Server VM, Host : *************, Content-Length : 763705, Content-MD5 : *********, }, params: { } com.qcloud.cos.exception.CosClientException: null