Itemlist not working in Opportunity

[Ellen]

Hi Victor,
Do I need to buy advance & sales pack
or only sales pack to solve this issue
thank you

[Ellen]

Hi Victor,
I'm using very old version.
It has been worked before. But now it's not working.
It need to be upgraded then it will be working?...

[Ellen]

Hi,
I have issue when using itemlist in Opportunity:
After I added any item list in Opportunity: save> it's ok. But after that when I open...