Unable to Load Game / Error Code 123

Hi SuperGangpao520​ 

could you post the full error message you're getting ?

Do you have any LastException files in Documents\Electronic Arts\The Sims 4 ?

- Delete the ones you have
- Trigger the error again
- Check if new ones are created
- If that is the case, please copy/paste the content here. You can open the file with any text editor.

Deleting the file won't fix your issue. Posting the info is meant for troubleshooting. 

I have attahced the LastException file. I started a new game but play the previous family I saved, the game goes well until I move to the old house

<?xml version="1.0" ?><root>
<report><version>2</version><sessionid>f25a31d3dcffda3968e3cd23</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-10-06 22:10:40</createtime><buildsignature>Local.Unknown.Unknown.1.118.257.1020-1.300.000.223.Release</buildsignature><categoryid>situation_scheduler_component.py:177</categoryid><desyncid>f25a31d3dcffda3968e3cd23</desyncid><systemconfig/><screenshot/><desyncdata>Exception raised while processing zone spin up sequence: 'SituationSchedulerComponent' object has no attribute 'object_situation_shifts' (AttributeError: 'SituationSchedulerComponent' object has no attribute 'object_situation_shifts')&#13;&#10;Traceback (most recent call last):&#13;&#10;&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 130, in wrapped&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 126, in finally_wrap&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Core\sims4\utils.py", line 157, in wrapper&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Core\sims4\utils.py", line 175, in wrapper&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\areaserver.py", line 383, in c_api_client_connect&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\zone.py", line 612, in do_zone_spin_up&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\zone_spin_up_service.py", line 1767, in update&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\zone_spin_up_service.py", line 399, in on_enter&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\venues\venue_service.py", line 345, in _select_zone_director&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\venues\venue_service.py", line 491, in _set_zone_director&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\business\business_zone_director_mixin.py", line 155, in on_startup&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\business\business_zone_director_mixin.py", line 43, in on_startup&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\celebrity_fans\fan_zone_director_mixin.py", line 33, in on_startup&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\venues\object_based_situation_zone_director.py", line 244, in on_startup&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\venues\object_based_situation_zone_director.py", line 261, in _start_object_based_situations_schedule&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\venues\object_based_situation_zone_director.py", line 502, in _setup_affected_objects_for_weekly_schedule&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\objects\script_object.py", line 2130, in add_dynamic_component&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\objects\components\__init__.py", line 356, in add_dynamic_component&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\objects\components\__init__.py", line 521, in __call__&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\objects\components\situation_scheduler_component.py", line 177, in __init__&#13;&#10;AttributeError: 'SituationSchedulerComponent' object has no attribute 'object_situation_shifts'rtim=0&#13;&#10;Client Session Time: 18.63&#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: 13,566,0,6079&#13; &#10;Modded: True&#13; &#10;SystemInfo: Windows 11 10.0.26100 GPU: Intel(R) Arc(TM) A770 Graphics  32.0.101.7026, GUID: B3AAA406-F6A5-11EF-8F1D-806E6F6E6963&#13; &#10;</desyncdata></report>
</root>

You can't attach them. You need to copy paste the content.

I have fixed the issue, ChatGPT analyzed my crash report and provided a solution, it is caused by the Build/Buy unlocker mod that I download in 2017. Because this mod leaves behind residual resources and code even after being removed from the folder, I mistakenly thought the issue wasn’t caused by the mod.

Thank you anyway!!