Question Symlinks in Apache: No input file specified. Error.

[Stefoo]

Hello,
I am trying to setup multiple domains and each one with own IP, and link each domain application folder via symlink to a single place.
Original place /var/www/vhosts/PrimaryDomain.com/httpdocs/appfolder
Symlinks from Secondary domains /var/www/vhosts/SecondaryDomain.co.uk/httpdocs/~appfolder
I am running PHP as FastCGI
My open_basedir is set to none.
Apache additional instructions:
<Directory /var/www/vhosts/SecondaryDomain.co.uk/httpdocs>
Options +ExecCGI +FollowSymlinks -SymLinksIfOwnerMatch -MultiViews +Indexes
DirectoryIndex index.php
AllowOverride All
Require all granted
</Directory>

And still get "No input file specified."
Please, any suggestions where I am doing wrong or missing something.
Thank you.