Help with a last exception

Can someone help me figure out what is causing this last exception. I don't have any mods in my game:

<?xml version="1.0" ?><root>
<report><version>2</version><sessionid>cdd1a42a340503f367be9369</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2025-02-25 21:13:19</createtime><buildsignature>Local.Unknown.Unknown.1.113.277.1030-1.200.000.652.Release</buildsignature><categoryid>story_progression_action_university.py:147</categoryid><desyncid>cdd1a42a340503f367be9369</desyncid><systemconfig/><screenshot/><desyncdata>Exception in Sim Timeline: Exception running Element (AttributeError: 'NoneType' object has no attribute '__name__')&#13;&#10;Traceback (most recent call last):&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\scheduling.py", line 231, in simulate&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\alarms.py", line 293, in _run&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_service.py", line 335, in _process_next_action&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_service.py", line 353, in process_action_index&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_action_university.py", line 119, in process_action&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\story_progression\story_progression_action_university.py", line 147, in _reenroll&#13;&#10;  File "T:\InGame\Gameplay\Scripts\Server\sims\university\degree_tracker.py", line 2265, in enrollAttributeError: 'NoneType' object has no attribute '__name__'rtim=0&#13;&#10;Client Session Time: 21.90&#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: 13,401,0,5914&#13; &#10;Modded: False&#13; &#10;SystemInfo: Windows 11 10.0.26100 GPU: NVIDIA GeForce RTX 4070 Laptop GPU nvldumdx.dll 32.0.15.6103, GUID: D7B71E3E-6B20-11CF-4F64-9E2C0EC2ED35&#13; &#10;</desyncdata></report>
</root>