Locked out and have no idea how to fix this

it still could be a plugin conflict, I hope. I hate to recommend ditching a custom theme.

Try manually resetting your plugins. If that resolves the issue, reactivate each one individually until you find the cause.

If that does not resolve the issue, access your server via FTP or SFTP, navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate, so at least you have a working site while you wait to hear back from the theme’s designer.

I currently have All In One SEO Pack, Captcha, and Google XML Sitemaps plugins. I honestly feel its the theme itself.

The kicker is, the lockout and the website not working is random. Sometimes my website and admin panel works, but sometimes it just errors out. Super frustrating and have no idea what to do.

If I do as you say, wont that reset the site to default making everything I have done gone?

If I do as you say, wont that reset the site to default making everything I have done gone?

Of course, if you do as mentioned above to force Twenty Fourteen to activate, you’ll be using the Twenty Fourteen theme, not your custom theme. The point is that you’ll at least have a working site while you wait for the theme’s designer to get back to you regarding the issue with your custom theme.

That’s why I mentioned resetting plugins first. If it’s one of the plugins, at least you can continue to use your custom theme while you either get help with the problem plugin or find an alternative.

Well I can’t help out with the lock out issue but if you don’t want to loose your theme and changes you made get a FTP client like Filezilla.

Log in and go to wp-content/theme and select your custom theme and then drag from the right side to the left to somewhere on your computer. This way when you want to add your theme again just drag it back to the right and it saves a copy on your computer. I would suggest that as you might over look the coding in it to see if theres any issues so you can edit then move back updated.

What I was suggesting earlier won’t delete the custom theme, it’s just re-naming the current theme’s directory to disable it. The name can always be changed back.