Hi,
this issue is releted to all users.
I tried to save empty workbook, but still the same errors.
my user is also have SAP_ALL authority.
1.3 Analysis and the latest patches I have.
I think the issue is releted to asking Request/Package form pop up. It doesnt occur while saving, so it gave that errors releted to RFC.
Now I am upgrading my BW Patch to 9 with our basis team.
When it finish I will try the step again and inform you about the latest news. Thank you for your supports.