Someone who edits their message within few minutes of posting exposes a mistruth.Nothing is dead , just not free any more
That’s just a glitch check again in 30 mins
I suggest in those 30 minutes you purchase a legit copy of WHMCS and respect your PAYING clients, make sure you take care of them too.
ON-TOPIC: OP be careful who you take advice from I advise to do your own research, seems like you already got it all worked out.