diff --git a/api/errors.go b/api/errors.go
index f53a54f..10fda74 100644
--- a/api/errors.go
+++ b/api/errors.go
@@ -22,20 +22,13 @@ var errorNoSuchCommenter = errors.New("No such commenter.")
 var errorAlreadyUpvoted = errors.New("You have already upvoted that comment.")
 var errorNoSuchDomain = errors.New("This domain is not registered with Commento.")
 var errorNoSuchComment = errors.New("No such comment.")
-var errorNeedPro = errors.New("You need to have a pro/business account to do that.")
 var errorInvalidState = errors.New("Invalid state value.")
-var errorInvalidTrial = errors.New("Invalid trial value.")
 var errorDomainFrozen = errors.New("Cannot add a new comment because that domain is frozen.")
 var errorDomainAlreadyExists = errors.New("That domain has already been registered. Please contact support if you are the true owner.")
 var errorUnauthorisedVote = errors.New("You need to be authenticated to vote.")
 var errorNoSuchEmail = errors.New("No such email.")
 var errorInvalidEmail = errors.New("You do not have an email registered with that account.")
-var errorNoTrialChange = errors.New("You cannot change to a trial plan.")
-var errorInvalidPlan = errors.New("Invalid plan value.")
-var errorNoSource = errors.New("You have no payment source on record to change your plan.")
-var errorCannotDowngrage = errors.New("Cannot downgrade plan features.")
 var errorForbiddenEdit = errors.New("You cannot edit someone else's comment.")
-var errorNotInvited = errors.New("Commento is currently in private beta and invite-only for now.")
 var errorMissingSmtpAddress = errors.New("Missing SMTP_FROM_ADDRESS")
 var errorSmtpNotConfigured = errors.New("SMTP is not configured.")
 var errorOauthMisconfigured = errors.New("OAuth is misconfigured.")