hey, i thought i would come here and ask after being locked out of my site thanks to phpmyadmin

,
anyways for the past 6 months i have had a site up with phpmyadmin running then 2 days ago it decided
it no longer wanted to log me in, i have been trying all day to get it working to no avail
i have reset the password, completely purged it and re installed but still nothing, there is not even a error
message when i try to log in, it just puts me back to the login screen and gives me a access token
any idea's?