message: fix roomstore errors
diff: @@ -123,6 +123,9 @@ export class ChannelSyncroniser {
  }
  public async GetRoomIdsFromChannel(channel: Discord.Channel): Promise<string[]> {
  + if (!this.roomStore) {
  + this.roomStore = this.bridge.getRoomStore();
  + }
  const rooms = await this.roomStore.getEntriesByRemoteRoomData({
  discord_channel: channel.id,
  });
  @@ -140,6 +143,9 @@ export class ChannelSyncroniser {
  mxChannels: [],
  });
  + if (!this.roomStore) {
  + this.roomStore = this.bridge.getRoomStore();
  + }
  const remoteRooms = await this.roomStore.getEntriesByRemoteRoomData({discord_channel: channel.id});
  if (remoteRooms.length === 0) {
  log.verbose(`Could not find any channels in room store.`);
  