自从上周一开始mac上的同步盘（版本2.4.5)开始不工作了，我尝试过卸载重新安装都不行，后来检测日志发现错误如下：
2018/01/22 16:58:24:076 -[StatusItemWindowController syncStatusChanged:] ---- staus changed received
2018/01/22 16:58:24:076 postMessage start->[Sync]:[A_SyncEnd]
2018/01/22 16:58:24:076 postMessage leave->onLeaveSync:
2018/01/22 16:58:24:076 postMessage enter->onEnterIdle:
2018/01/22 16:58:24:076 postMessage end->[Idle]
2018/01/22 16:58:24:085 status item tip:同步失败
2018/01/22 16:58:24:085 -[StatusItemWindowController syncStatusChanged:] ---- staus changed received
2018/01/22 16:58:25:728 netdisk server errorCode:-6, changeTolocal errorCode:-301
谁知道怎么修复这个错误？