Log4net gives error on UpdateLogFilePath when logfilepath changes dynamically for an appender.

We get the following errors randomly in our Windows service. And the service hangs sometimes. Can you please suggest a resolution. The logfilepath is set dynamically from database table for the appender.

Error validating Tagged message. StackTrace: at log4net.Appender.FileAppender.ActivateOptions()
at log4net.Appender.RollingFileAppender.ActivateOptions()
at TtsEmea.ImagingWorkflow.Log4NetWrapper.Log4NetLogger.UpdateLogFilePath(String appender, String logFilePath)
at TtsEmea.ImagingWorkflow.Common.LogWrapper.LogFactory.GetLoggerBasedOnType(LoggerType type, String appender, String logFilePath)
at TtsEmea.ImagingWorkflow.Common.LogWrapper.LogManager.GetLoggerFactory(String configurationFilePath, String appender, String logFilePath)
at IntellectFlow.Classes.cMessageLog.WriteInfoMessage(String strMessage)
at IntellectFlow.Classes.cFileRecordSet.GetIndexValueForTagged()
at IntellectFlow.Classes.cFileRecordSet.ValidateTagged()

Error creating TIF file. at log4net.Appender.FileAppender.ActivateOptions()
at log4net.Appender.RollingFileAppender.ActivateOptions()
at TtsEmea.ImagingWorkflow.Log4NetWrapper.Log4NetLogger.UpdateLogFilePath(String appender, String logFilePath)
at TtsEmea.ImagingWorkflow.Common.LogWrapper.LogFactory.GetLoggerBasedOnType(LoggerType type, String appender, String logFilePath)
at TtsEmea.ImagingWorkflow.Common.LogWrapper.LogManager.GetLoggerFactory(String configurationFilePath, String appender, String logFilePath)
at IntellectFlow.Classes.cMessageLog.WriteInfoMessage(String strMessage)
at IntellectFlow.Classes.cFileRecordSet.WriteTextToTIFF(String sContent, String sFile)