ErrorMessage:The Service Type field is required in Service Orders

Hello,
The system give an Error Message 'The Service Type field is required in Service Orders' when i has been generated service order.
More details to refer to attachments.
May i have your help? Thank you so much!

Steven

Attached Images

	Generate service order error.png (137.9 KB)
	project.png (224.6 KB)
	Reference Activity.png (212.8 KB)