What does this error mean?

Got this after starting the game and loading a household into cas.

<report><version>2</version><sessionid>bb95eba38aaa12d669537034</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-12-30 06:50:40</createtime><buildsignature>Local.Unknown.Unknown.1.120.117.1030-1.200.000.685.Release</buildsignature><categoryid>(AS)widgets.Exchange.Detail::DetailPanel</categoryid><desyncid>bb95eba38aaa12d669537034</desyncid><systemconfig/><screenshot/><desyncdata>TypeError: Error #1009: Cannot access a property or method of a null object reference.&#13;&#10;    at widgets.Exchange.Detail::DetailPanel/OnConfirmDelete()&#13;&#10;    at widgets.Exchange.Detail::DetailPanel/HandleDeleteCorruptedExchangeItem()&#13;&#10;    at olympus.io::CommunicationObject/Dispatch()&#13;&#10;    at olympus.io::CommunicationManager/SendUIMessage()&#13;&#10;    at olympus.io::CommunicationManager/SendMessage()&#13;&#10;    at widgets.Dialog.actions::MessageDialogAction/Execute()&#13;&#10;    at widgets.Dialog.footers::YesNoFooter/OnOkButtonClick()&#13;&#10;    at olympus.gui.buttons::Button/OnMouseRelease()&#13;&#10;rtim=148693&#13;&#10;Client Session Time: 65.13&#13; &#10;Num Save Errors: 0&#13; &#10;Num Load Errors: 0&#13; &#10;Current Game State: 0x96d01090&#13; &#10;LoadingScreenActiveFlag: 1&#13; &#10;Origin Version: 13,616,1,6133&#13; &#10;Modded: True&#13; &#10;SystemInfo: Windows 11 10.0.26200 GPU: NVIDIA GeForce RTX 4080 SUPER  32.0.15.9159, GUID: BEC33A54-EA45-11EF-9DD1-C0BFBE2AADD5&#13; &#10;</desyncdata></report>