Upgrading from Starter to Business

Joomla 2.5.8
Upgrading from HikaShop 2.0.0 Starter to Business:

Following www.hikashop.com/en/support/documentatio...-install.html#update
I go to Joomla Extension Manager - Install ...

and I have back this error message:
"There was an error uploading this file to the server"

Please, What am I missing?

Hi,

Maybe you have an access rights issue on your website.

Can you try to install via FTP as explained here ?

Hi Mohamed,

many thanks for suggestion, it solved the issue.

In any case I had this problem on my server just with Hikashop, it's running for all the other extensions and I checked all the Directory Permissions, are all Writable (except of the Configuration file)