diff --git a/lib/commands/admin-rpc.js b/lib/commands/admin-rpc.js
index e67f75f6c..d7f22825d 100644
--- a/lib/commands/admin-rpc.js
+++ b/lib/commands/admin-rpc.js
@@ -175,6 +175,42 @@ var restoreArchivedDocument = function (Env, Server, cb) {
     cb("NOT_IMPLEMENTED");
 };
 
+// CryptPad_AsyncStore.rpc.send('ADMIN', ['CLEAR_CACHED_CHANNEL_INDEX', documentID], console.log)
+var clearChannelIndex = function (Env, Server, cb, data) {
+    var id = Array.isArray(data) && data[1];
+    if (typeof(id) !== 'string' || id.length < 32) { return void cb("EINVAL"); }
+    delete Env.channel_cache[id];
+    cb();
+};
+
+// CryptPad_AsyncStore.rpc.send('ADMIN', ['GET_CACHED_CHANNEL_INDEX', documentID], console.log)
+var getChannelIndex = function (Env, Server, cb, data) {
+    var id = Array.isArray(data) && data[1];
+    if (typeof(id) !== 'string' || id.length < 32) { return void cb("EINVAL"); }
+
+    var index = Util.find(Env, ['channel_cache', id]);
+    if (!index) { return void cb("ENOENT"); }
+    cb(void 0, index);
+};
+
+// CryptPad_AsyncStore.rpc.send('ADMIN', ['CLEAR_CACHED_CHANNEL_METADATA', documentID], console.log)
+var clearChannelMetadata = function (Env, Server, cb, data) {
+    var id = Array.isArray(data) && data[1];
+    if (typeof(id) !== 'string' || id.length < 32) { return void cb("EINVAL"); }
+    delete Env.metadata_cache[id];
+    cb();
+};
+
+// CryptPad_AsyncStore.rpc.send('ADMIN', ['GET_CACHED_CHANNEL_METADATA', documentID], console.log)
+var getChannelMetadata = function (Env, Server, cb, data) {
+    var id = Array.isArray(data) && data[1];
+    if (typeof(id) !== 'string' || id.length < 32) { return void cb("EINVAL"); }
+
+    var index = Util.find(Env, ['metadata_cache', id]);
+    if (!index) { return void cb("ENOENT"); }
+    cb(void 0, index);
+};
+
 // CryptPad_AsyncStore.rpc.send('ADMIN', [ 'ADMIN_DECREE', ['RESTRICT_REGISTRATION', [true]]], console.log)
 var adminDecree = function (Env, Server, cb, data, unsafeKey) {
     var value = data[1];
@@ -269,6 +305,12 @@ var commands = {
     ARCHIVE_DOCUMENT: archiveDocument,
     RESTORE_ARCHIVED_DOCUMENT: restoreArchivedDocument,
 
+    CLEAR_CACHED_CHANNEL_INDEX: clearChannelIndex,
+    GET_CACHED_CHANNEL_INDEX: getChannelIndex,
+
+    CLEAR_CACHED_CHANNEL_METADATA: clearChannelMetadata,
+    GET_CACHED_CHANNEL_METADATA: getChannelMetadata,
+
     ADMIN_DECREE: adminDecree,
     INSTANCE_STATUS: instanceStatus,
     GET_LIMITS: getLimits,
diff --git a/www/common/outer/async-store.js b/www/common/outer/async-store.js
index df05d8a3e..e849ce20d 100644
--- a/www/common/outer/async-store.js
+++ b/www/common/outer/async-store.js
@@ -256,7 +256,7 @@ define([
 
         Store.getPinnedUsage = function (clientId, data, cb) {
             var s = getStore(data && data.teamId);
-            if (!s.rpc) { return void cb({error: 'RPC_NOT_READY'}); }
+            if (!s || !s.rpc) { return void cb({error: 'RPC_NOT_READY'}); }
 
             s.rpc.getFileListSize(function (err, bytes) {
                 if (!s.id && typeof(bytes) === 'number') {