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Error when inserting data on the External Object

I would like to connect my org to the external data using OData 4.0. I have been configured the External Data Source and automatically create External Object.
But there is a problem when creating record in the external object. After save button clicked, then error dialog appears, see image below:
User-added image
Actually the data that I inserted was successfully created, but I still meet this error.
FYI, I have been configured the primary key on OData configuration and MySQL database.
NagendraNagendra (Salesforce Developers) 
Hi Ananta,

May I suggest you please check with below links which will point you in the right direction. Hope this helps.

Hi Nagendra,
Many thanks for your help. I have followed all step on those links you gave, but the error dialog still appeared.
Data successfully created, edited, or deleted. Just, this error happen when I click Save on create new data.