i can't insert an image from my PC to my page
https://ge-hc.atlassian.net/wiki/x/3gDfI
as i click on the + sign and insert image, there is no any window pop up. and this page doesn't have any response.
but at other page, when i click on the same button, a window will pop up and let me select the files or images from my PC.
could someone help on this issue?