Directory listing disabled in Plesk 10.4.4

[PROBUDHAN]

Hello

I am running Plesk V 10.4.4 with Webtropia

However, whenever I try to view a sub-folder or a file, I get either a 403 Forbidden or a 404 Not Found error

I contacted webtropia but since this is an unmanaged VPS, they left me to figure it out for myself

Kindly advise on how I can enable directory listings on my server


Thanks