Vesta Control Panel - Forum

Hello, i want to install MediaWiki today. But when I want to install it there was this problem: Warning: is_dir(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/home/nicecarwash.at/web/wiki.nicecarwash.at/public_html:/home/nicecarwash.at/tmp) in /home/nicecarwas...

Hello,

i want to install ionCube and want to use WHMCS and i dont know how to install ionCube i have tryed it 3 times but nothing works.
My OS ist Debian 8.7

Can anyone help me?