Hi,
www.hikashop.com/support/support/documen...-install.html#errors
1. You're PHP upload limitation should be at 2Mb, so the upload failed and Joomla can't find the package.
We know that the error message displayed is not comprehensible, but we currently can't do anything to fix it in Joomla.
2. When you are trying to install by FTP (from directory) you have to extract the zip file before ; like explained in the documentation page just above.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.