Looking for logging into the Ubuntu 18.04 Incorrect site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Ubuntu 18.04 Incorrect site. After that you can login as usual with your login credentials.
https://www.reddit.com/r/Ubuntu/comments/8fo588/i_cant_login_after_installing_1804/
https://askubuntu.com/questions/1059458/ubuntu-18-04-on-login-loop-even-with-correct-password
https://bugs.launchpad.net/bugs/1765261
https://bugs.launchpad.net/bugs/1769416
https://ubuntuforums.org/showthread.php?t=1836616
https://linuxconfig.org/how-to-reset-lost-root-password-on-ubuntu-18-04-bionic-beaver-linux
https://www.quora.com/What-do-I-solve-login-incorrect%E2%80%9D-error-in-Ubuntu-16-04-1
http://discourse.ubuntu.com/t/ubuntu-18-04-beta-login-loop-after-failed-upgrade/4313
https://unix.stackexchange.com/questions/170650/ubuntu-does-no-let-me-log-in-to-my-user-how-can-i-fix-it
https://linustechtips.com/main/topic/937933-ubuntu-server-1804-cant-login/
http://www.ubuntu-forum.de/artikel/42095/login-incorrect.html
https://websiteforstudents.com/reset-forgotten-ubuntu-user-password-on-ubuntu-16-04-17-10-18-04/
https://itsfoss.com/things-to-do-after-installing-ubuntu-18-04/