Yo not enough rep mah homie.

public/language/en_GB/error.json

@@ -81,7 +81,7 @@
 	"reputation-system-disabled": "Reputation system is disabled.",
 	"downvoting-disabled": "Downvoting is disabled",
 	"not-enough-reputation-to-downvote": "You do not have enough reputation to downvote this post",
-	"not-enough-reputation-to-flag": "Yo do not have enough reputation to flag this post",
+	"not-enough-reputation-to-flag": "You do not have enough reputation to flag this post",
 
 	"reload-failed": "NodeBB encountered a problem while reloading: \"%1\". NodeBB will continue to serve the existing client-side assets, although you should undo what you did just prior to reloading."
 }