Ask install owncloud at centos 7 [Urgent]

Hello can all help me? I already install using tutorial

and finish install LAMP



Can't write into config directory!

This can usually be fixed by <a href="" target="_blank" rel="noreferrer">giving the webserver write access to the config directory</a>.

I do no how to fix this

Please help me

Me using google cloud

Looks to me like you should follow that link in the message.