Hi Ahsanun
I know that we had a bug related to another report type about a similar message "is not allowed to be created in a sandboxed report" for Cloud... and was fixed by 10SR4 ...maybe this could be also a bug in your Cloud version...
Please whats your Cloud version ? Also are you using some public cloud ? which Cloud are you using ?
BR
AO
Hi Andre
Thank for your reply
I use cloud version in this link https://apac.ariscloud.com
attached detail of my projects room
Ahsanun Naseh Khudori