I really need help!!

Consider using phpMyAdmin to make sure your wp_options table has the correct values in siteurl and home.

siteurl is your WordPress address (URI) and home is your Blog Address (URI).

You might want to logout and delete your wp-content/cache folder also.

And, some other info:
Giving_WordPress_Its_Own_Directory
Moving_WordPress

Hi!
But the address https://powah.3w.se are wrong, I can′t switch back to the right address = https://www.teamkaynines.se/bloggen. That′s the problem I have, how I do to write in the address in WP address?

Try this little tutorial: https://www.tamba2.org.uk/wordpress/site-url/

powah, Michael pointed out the solution with his first link. You have to access the database and change the options for your blog and WordPress addresses that way.

https://www.tamba2.org.uk/wordpress/site-url/

Oh Thank you all soo much!!! Thank Thank!! ?? *Big Hugs!*