diff --git a/html/inc/delete_account.inc b/html/inc/delete_account.inc
index 74dbd111200..03c60d43761 100644
--- a/html/inc/delete_account.inc
+++ b/html/inc/delete_account.inc
@@ -197,6 +197,7 @@ function wipe_account($user) {
     BoincHostAppVersion::delete_for_user($user->id);
     BoincHost::delete_for_user($user->id);
     BoincConsent::delete_for_user($user->id);
+    BoincTeamAdmin::delete("userid=$user->id");
 
     // final action
     delete_user($user);  //from user_util.inc
diff --git a/html/inc/forum_email.inc b/html/inc/forum_email.inc
index 67fc7795fe8..22a469ca89c 100644
--- a/html/inc/forum_email.inc
+++ b/html/inc/forum_email.inc
@@ -52,6 +52,7 @@ function mail_report_list($forum, $subject, $body, $must_send=false) {
         $admins = BoincTeamAdmin::enum("teamid=$team->id");
         foreach ($admins as $admin) {
             $u = BoincUser::lookup_id($admin->userid);
+            if (!$u) continue;
             $success &= send_email($u, $subject, $body);
         }
         break;
diff --git a/html/inc/team.inc b/html/inc/team.inc
index e70120e5206..7bb320606c6 100644
--- a/html/inc/team.inc
+++ b/html/inc/team.inc
@@ -365,6 +365,7 @@ function admin_list($teamid) {
     $admins = BoincTeamAdmin::enum("teamid=$teamid");
     foreach ($admins as $admin) {
         $user = BoincUser::lookup_id($admin->userid);
+        if (!$user) continue;
         $u[] = $user;
     }
     return $u;
diff --git a/html/user/team_admins.php b/html/user/team_admins.php
index 57365dbe028..93fde5caa4a 100644
--- a/html/user/team_admins.php
+++ b/html/user/team_admins.php
@@ -26,6 +26,7 @@
 
 function show_admin($user, $admin) {
     $admin_user = BoincUser::lookup_id($admin->userid);
+    if (!$admin_user) return;
     $tokens = url_tokens($user->authenticator);
     $date = date_str($admin->create_time);
     echo "<tr>