rosabel

What do you mean by this? If your server is already created, simply click the Activate button on your server dashboard. If not, there should be a Create Server button where you can be taken through the creation process. If it's Offline you can click on the Start button to activate it. The server starting up usually takes 1-2 minutes.

Though, I will need more information to help you if the problem persists even after having tried my solutions.

Ensure she is typing the command /whitelist add yourusername while in-game. She also must make sure she is an operator. If she's not, it would bring up an error saying she has no permission.

If both of these things are done, and you still aren't whitelisted, go to File Manager > Scroll down until you see a file called 'whitelist.json' > Delete the file > Restart your server > Try again.

If possible, also send me your server logs. This can be done by having her do the command /dl logs and sending the file to you for you to paste in your message here.

This should be posted in the Help section but no, you can not. Minehut doesn't support cracked launchers. It's a premium account only server.