求帮忙解读LastException错误记录

xia14001

请大神帮忙解读下LastException.txt打开后完全看不懂呀QAQ
<?xml version="1.0" ?><root>
<report><version>2</version><sessionid>3f82c80ff333b68f5a83d96a</sessionid><type>desync</type><sku>ea.maxis.sims4.13.pc</sku><createtime>2018-02-14 15:23:40</createtime><buildsignature>Local.Unknown.Unknown.1.38.49.1020-1.200.000.320.Release</buildsignature><categoryid>transition_sequence.py:3781</categoryid><desyncid>3f82c80ff333b68f5a83d96a</desyncid><systemconfig/><screenshot/><desyncdata>Exception in Sim Timeline: Exception running Element (AttributeError: 'NoneType' object has no attribute 'get_target_si')Traceback (most recent call last):
File "T:\InGame\Gameplay\Scripts\Server\scheduling.py", line 212, in simulate
File "T:\InGame\Gameplay\Scripts\Server\elements.py", line 376, in _run  
File "T:\InGame\Gameplay\Scripts\Server\postures\transition_sequence.py", line 4231, in do_transition_multi_exit
File "T:\InGame\Gameplay\Scripts\Server\postures\transition_sequence.py", line 3781, in run_super_interaction
AttributeError: 'NoneType' object has no attribute 'get_target_si'</desyncdata></report>
</root>