Unable to connect to my MCBE (Pocketmine-mp) server

I've been having issues with connecting to my server cause it's saying "Unable to connect to world". I've went on a thread that's on here but the thread is closed now, anyways I've possibly found the answer to my problem but where can I actually find "connect data" on Aternos.com in the server tab? I dont see that button after I tap on the connect button. Also would I actually need to port forward MCBE (MCPE) to my mom's router? If I actually do need to port forward MCBE (MCPE) then I'm unable to do so cause there's a reason why the ports to my mom's router are closed and that my mom would say "no". But if there's no need to port forward then I would like to have some assistance with connecting to my server. Please and thank you.

btw if I was supposed to post this thread somewhere else then I'm sorry for not posting this in the right place but I seriously need some help with connecting to my MCBE server.

alright, thanks

oh, wait, I've seen and read the article before and still doesn't work for some odd reason

I'm possibly thinking that it's the port but if not then what have I done wrong for me not to be able to connect and I've also tried the alternative ip and said that I wasn't invited to the server. What's up with that? Why did it say that when that alternative ip address is my last resort to try to connect to my server?