Last Exception Error Build Mode
I've been getting this error since the last big update. I updated all my mods and I've deleted CCs that were missing the footprint resource and the ones that were outdated. I am not sure what this error means and how to fix it. Most issues, I can fix (with the help of forums of course) but this is completely new to me. I've been building a house since November so I don't know if it's affecting gameplay. The only thing I've noticed is that it takes forever to Save and Exit, in Build Mode if I place an object it disappears and reappears a few seconds later (it's annoying but placement is not an issue), and I've noticed the words Lotsumvalum and something else in House Info. I've been trying to find posts about this specific error but so far haven't seen anything. Can someone please help?!
I am using Windows 10 64 bit, Sims 4 Digital Deluxe. I'm not sure what other information would be useful.
Last Exception Error:
<?xml version="1.0" ?><root>
<report><version>2</version><sessionid>fe5d304227c26a285e7a4544</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2020-03-24 17:53:14</createtime><buildsignature>Local.Unknown.Unknown.1.61.15.1020-1.200.000.440.Release</buildsignature><categoryid>(AS)olympus.controls::GUIComponent</categoryid><desyncid>fe5d304227c26a285e7a4544</desyncid><systemconfig/><screenshot/><desyncdata>ReferenceError: Error #1069: Property SetListItemListener not found on [object DropdownExtension] and there is no default value. at olympus.controls::GUIComponent/ConfigUI() at olympus.controls::GUIComponent/OnAddedToStage() at olympus.core::LayoutManager/LoadWidgetCompleteHandler() rtim=72116</desyncdata></report>
</root>