[{'error': 'NER crash'}] 

@jhyuklee @donghyeonk @wonjininfo @seanswyi 

I have implemented in my local system.

I often get this issue.
`[03/Dec/2020 16:14:14.692631] [Thread-424] [{'error': 'NER crash'}] `

Can you help me with this error. 
What can be the possible things that is triggering this error