make rcon_connection_cache a dictionary
@@ -141,7 +141,7 @@ bot.d.lang_cache = {} # {gid: 'lang'}
bot.d.additional_mcservers = []
bot.d.mcserver_list = []
-bot.d.rcon_connection_cache = []
+bot.d.rcon_connection_cache = {}
bot.d.fun_langs.unenchant = {v: k for k, v in bot.d.fun_langs.enchant.items()} # reverse dict to create unenchantment lang
