No, creating a new account will not be a good solution especially if casino have a rule to prohibit multi account. You can ask to their support system or refresh your modem so you will get another IP. But I think that is just an error that sometime happen while you gamble.
So there is nothing to worry if you can open the other slots games or other gambling games. Casino have so many gambling games we can play so that should not be a serious problem for us.
I am really doubtful that there are casinos that allow people to create and use multiple accounts on their platforms. Exception is only if a person requests a casino to close an account and later want to come back with a new account but surely solid reasons must be provided to convince the casino gives you a refreshing access to their platform legallly.
If you want to do this, firstly you must be sure that their ToS accepts this action, and seconly you must contact their support team as well as compliance team if possible for further confirmation before you doing this and depositing your money there. Don't try to interpret their ToS by yourself and take too high risk, ask them and get their official answer about it first.
I think there's provably an exception depends on the reason of the user. So same with other people suggest he must discuss about this matter in their support and don't take bad decision to create another one without notifying them because for sure that this will just create another issues to them.
They should not everything and better wait for the support response towards this situation.
Because for sure that they can gamble here without anything to worry especially if there support will give them a clearance to create new account.