Receiving UPLOAD_ERR_NO_TMP_DIR error on file upload with default template

[Bibendus]

Hi everyone.
I have an issue with file uploads on my laravel app installed on a VestaCP server.
I'm using the standard configuration with nginx+apache2 and it seems that leaving the "Default" web template blocks file upload on my server.
The files are not uploaded and I always receive an error 6 (UPLOAD_ERR_NO_TMP_DIR) when I try to.

For testing purposes I tried to change the web template and these are the results:
basedir - UPLOAD_ERR_NO_TMP_DIR
default - UPLOAD_ERR_NO_TMP_DIR
hosting - NO ERROR
phpfcgid - NO ERROR

Is that standard behavior or am I missing something?
Having a default installation that doesn't support file uploads seems a bit weird to me.