You can not create attachments as the issue is in a non-editable workflow state.

Manage Attachments OT-130

This page allows you to manage the attachments for a particular issue. Only users with administrative privileges to remove an issue can remove attachments.
    File Name Size Mime Type Date Attached Attached By  
1 File After fix.png 351 kB image/png Indrasan Yadav
2 File Before Fix.png 419 kB image/png Indrasan Yadav
3 File OT_Huawei_RAN All Nodes_Physical.docx 1.59 MB application/vnd.openxmlformats-officedocument.wordprocessingml.document Indrasan Yadav
4 File SRAN Supported Technology Snippet.png 117 kB image/png Indrasan Yadav