How to add images on Canned Response screen? Edited

[JiraKOI]

Hi all, 

How can I add images on the Canned Response Screen? 

I remember that adding images was working by Ctrl C + Ctrl V. 

But after I re-install Jira Service Desk Server, it shows following error message: 

(Once, I did Ctrl C + Ctrl V) 

(After I save the canned response, it shows the image like this) 

I enabled the Attachment and attachment permissions...

Also, uploading attachment is fine but if I put it on the screen, the same issue appears. 

Could you please help me with this issue? 

Thank you