Cant login after a fresh installation

Please can somebody help with solution to this issue? I did an installation of OJS 3.4.0.3 but couldnt login. after several attempt i got logged in but could not create a new journal. i get the error “The current role does not have access to this operation.” then i closed the page and tried to login again but it keeps redirecting me to the same login page. I need assistance please. my site is at:
https://nlist.net.ng/index.php/index/login

this problem actually started after i installed Omeka on a subdomain in my site. I have uninstalled that omeka already.

Additional information
Please add any screenshots, logs or other information we can use to investigate this problem.

Hi @David_Oguche,

Can you check your PHP error logs - and report on any errors from there?

-Roger
PKP Team