report server 订阅无法正常执行

[ychlr]

查看报告没任何问题，但设置了文件传输（邮件）订阅，只有上次执行时间会更新，但实际并未创建文件（发送邮件）
查看LogFiles会有这些提示，不知道哪里出了问题求助
library!DefaultDomain!b28!08/28/2018-11:53:44:: i INFO: Initializing WatsonDumpOnExceptions to 'Microsoft.ReportingServices.Diagnostics.Utilities.InternalCatalogException,Microsoft.ReportingServices.Modeling.InternalModelingException,Microsoft.ReportingServices.ReportProcessing.UnhandledReportRenderingException' as specified in Configuration file.
library!DefaultDomain!b28!08/28/2018-11:53:44:: i INFO: Initializing WatsonDumpExcludeIfContainsExceptions to 'System.Threading.ThreadAbortException,System.Web.UI.ViewStateException,System.OutOfMemoryException,System.Web.HttpException,System.IO.IOException,System.IO.FileLoadException' as specified in Configuration file.