So if you accidentally switched your YouTube account to a Google+ page you might have gotten a login error like this when you tried to log into your YouTube account with your google account.
Sorry, we found some errors: You are not eligible to create an account. Sorry, your login was incorrect.
This means you have to use your new Google+ page email to log into. If 14 days have not passed since you switched to the Google+page integration, you can still switch back and unlink your Youtube account and Google+Page accounts. Instructions for unlinking can be found here written o n the Google Product Forums: https://productforums.google.com/forum/?fromgroups#!topic/youtube/w0Zul7TgJio If 14 days passed then you have to now login with your new google+page email. This post will explain how to find your Google+Page email, so you can login to your YouTube account, change logins and more!
So you’re probably wondering what your Google+Page email is, to get that login with your Youtube username and password, you will get a error saying what your new email is and that you should login with as shown below:
BUT when you use that email and your password it may not still work. So to get the password go to http://plus.google.com and login with your google account associated with your YouTube account. Then on the left panel click on Pages link and it will show your Youtube page. Click on “Switch to Page”. As shown below:
Then once again on the left panel click on “Settings” and scroll down to setup password for your Google+ Page account.
Once you do, you would be able to login with the listed email in settings and the new password you’ve set.
If 14 days have not passed you can switch back to your former YouTube email, to do this go to YouTube account settings and unlink your Youtube from Google+Pages
Additional note: If you don’t want to sign-in with your long @pages.plusgoogle.com email you can sign in with a shorter one by attaching a gmail account to your youtube account.
To do that, login into youtube with your @pages.plusgoogle.com email and then go to http://gmail.com and setup a desired name gmail account. Now you can sign-into youtube with just your gmail account name instead of typing out the long @address.com