INSERT OR IGNORE inserting duplicate statements

So I'm having issues with my SQL queries, first I run this to make sure that the entry is in the database:

 "INSERT OR IGNORE INTO `scores` (`uuid`) VALUES ('" + stat.player + "')"

Next I run:

"UPDATE scores SET uuid = '" + stat.player + "', level = '"
                + stat.level + "', xp = '" + stat.xp
                + "', xpToNextLevel = '" + stat.xpToNextLevel
                + "', attackPoints = '" + stat.attackPoints
                + "', defencePoints = '" + stat.defencePoints
                + "', kills = '" + stat.kills + "', deaths = '"
                + stat.deaths + "', monsterKills = '" + stat.monsterKills
                + "' WHERE uuid = '" + stat.player + "'"\

My problem is that running the "INSERT OR IGNORE" isn't ignoring if there is a duplicate value. It will insert a new row with the same uuid every time I run it, and update all the rows with the same uuid.

I'm guessing I'm probably missing something, if you could help out I would really appreciate it ;) (been working on trying to fix this for 2 days)