I can't tell what my last exception means.

Ok I keep getting this LE constantly, like repeating non-stop since I updated my game. Each report says the same thing, so I'm just going to post it once rather than the whole file.

2f639fe98f2b975c65d0e3615desyncea.maxis.sims4_64.15.pc2019-06-22 15:09:34Local.Unknown.Unknown.1.52.100.1020-1.200.000.397.Releasebuff_component.py:1029f639fe98f2b975c65d0e3615Exception in Sim Timeline: Exception running Element (AttributeError: 'NoneType' object has no attribute 'can_add') Traceback (most recent call last): File "T:\InGame\Gameplay\Scripts\Server\scheduling.py", line 212, in simulate File "T:\InGame\Gameplay\Scripts\Server\alarms.py", line 260, in _run File "T:\InGame\Gameplay\Scripts\Server\statistics\continuous_statistic.py", line 778, in _alarm_callback File "T:\InGame\Gameplay\Scripts\Server\statistics\continuous_statistic.py", line 799, in _trigger_callback File "T:\InGame\Gameplay\Scripts\Server\statistics\base_statistic_listener.py", line 53, in trigger_callback File "T:\InGame\Gameplay\Scripts\Server\statistics\commodity.py", line 1132, in _update_state_down File "T:\InGame\Gameplay\Scripts\Server\statistics\commodity.py", line 1362, in _set_state File "T:\InGame\Gameplay\Scripts\Server\objects\components\__init__.py", line 459, in exported_func File "T:\InGame\Gameplay\Scripts\Server\objects\components\buff_component.py", line 396, in remove_buff File "T:\InGame\Gameplay\Scripts\Server\buffs\buff.py", line 1110, in on_remove File "T:\InGame\Gameplay\Scripts\Server\objects\components\__init__.py", line 459, in exported_func File "T:\InGame\Gameplay\Scripts\Server\objects\components\buff_component.py", line 237, in add_buff_from_op File "T:\InGame\Gameplay\Scripts\Server\objects\components\buff_component.py", line 1029, in _can_add_buff_type AttributeError: 'NoneType' object has no attribute 'can_add' rtim=0

There isn't a mod mentioned though so I have no idea what's causing it. Any ideas?