When I click install I get this error:
Something went wrong: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'flarum.settings' doesn't exist (SQL: select exists(select * from `settings` where `key` = version) as `exists`)
If i click again, I get this error:
Something went wrong: SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'migrations' already exists (SQL: create table `migrations` (`migration` varchar(255) not null, `extension` varchar(255) null) default character set utf8mb4 collate utf8mb4_unicode_ci)
Any fix?
---EDIT---
The issue was I was using MariaDB, which apparently Flarum does not support (you need Oracle MySQL).
This is an issue if you are using Alpine Linux (I ended up switching to Scientific Linux and adding the MySQL repo with yum).