Timestamp              	Process                                 	TID   	Area                          	Category                      	EventID	Level     	Message 	Correlation
03/30/2021 02:17:45.35 	w3wp.exe (server:0x068C)              	0x4150	SharePoint Foundation         	Runtime                       	tkau	Unexpected	Microsoft.SharePoint.WebPartPages.WebPartPageUserException: 現在、そのファイルは他のユーザーによって、チェックアウトされているか、または編集中のためロックされています。    at Microsoft.SharePoint.WebPartPages.SPWebPartManager.OnWebPartDeleting(WebPartCancelEventArgs eventArgs)     at System.Web.UI.WebControls.WebParts.WebPartManager.CloseOrDeleteWebPart(WebPart webPart, Boolean delete)     at Microsoft.SharePoint.WebPartPages.SPWebPartManager.DeleteWebPartInternal(WebPart webPart)     at Microsoft.SharePoint.WebPartPages.WebPart.DeleteMenuOptionClick(WebPart part, Object sender, EventArgs eventArgs)     at Microsoft.SharePoint.WebPartPages.WebPart.MenuOptionClick(Menu menu, WebPart part, String menuOptionID)     at Microsoft.SharePoint.WebPartPages.SPWebPartManager.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)  ...	ba42b99f-cdec-e08e-dc40-55c53c0e47b0
03/30/2021 02:17:45.35*	w3wp.exe (server:0x068C)              	0x4150	SharePoint Foundation         	Runtime                       	tkau	Unexpected	...   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)	ba42b99f-cdec-e08e-dc40-55c53c0e47b0