I'm trying to install a fresh new install of PhpBB 3.2.8 and it does not want to go to the next step after "Set installation data". Once I write all the database information and click next, it refreshes the step and forces me to write admin user data and database info again all the time. Since there is no error I don't know what to look for. I have another forum on a different subdomain working properly with an older version, it uses the same database information just database name is different and it works fine so I'm not writing my password or username wrong.
Are there any ideas about what could be happening? I'm using Nginx on CentOS 7.