Try using CzechHek's InventoryManager instead of the built in Liquidbounce one because it has more customizability but I'm not sure if it will solve your problem or not.
https://forums.ccbluex.net/topic/142/inventorymanager-7-1-biggest-update-yet?_=1615746338206
"What you can do is generate a JWT for a premium account and use it to login instead. Then you can still use the chat when being logged into a cracked account"