Import data from Phorum

Support
14

It ended with:

/var/discourse/script/import_scripts/base.rb:14:in `require_relative': cannot load such file -- /var/discourse/config/environment (LoadError)
    from /var/discourse/script/import_scripts/base.rb:14:in `<top (required)>'
    from script/import_scripts/phorum.rb:3:in `require'
    from script/import_scripts/phorum.rb:3:in `<main>'

If I compare directories on github and in /var/discourse I have missing a lot of them (I don’t know how that’s possible). Shouldn’t I try to remove entire /var/discourse and download it again?