Admin locked after redirect landing page

Hello,

I made this stupid mistake of using a plugin that redericts people away from the wordpress login, just for security reasons.

Just to test i installed a landing/coming soon plugin to see how it works.

no matter what you do, you always see the plugin landing page and since you are redirected from the admin login, i cannot access it no more.

Is there a way to turn of that plugin directly into the databse or maybe another solution to get things working again?

Thanks

Roger