Friend try to work with ODOO database which means you have to create a database named "ODOO" where master code = admin.

or try with this in your postgres:

update res_users set password ='xxxxxx' where login ='admin'

 Try to update your addons folders may be they were damaged  from the official site https://www.odoo.com/fr_FR/page/download then delete the old database and create a new one named "odoo".

Regards.

I did that, unfortunately that didnt work.

The interesting thing is when I enter wrong password it says and also logs that my password is not correct. On the other hand when I try to login with right password it does not say that password is incorrect but it does not log me in either.