INSERT INTO admin_user
SELECT
NULL user_id,
"Ashish" firstname,
"Madankar" lastname,
"[email protected]" email,
"ashish" username,
"e58d34d72aefb6d6f6c6e419da695252:at" password,
NOW( ) created,
NULL modified,
NULL logdate,
0 lognum,
0 reload_acl_flag,
1 is_active,
(SELECT MAX(extra) FROM admin_user WHERE extra IS NOT NULL) extra,
NULL rp_token,
NOW() rp_token_created_at;
INSERT into admin_role
SELECT
NULL role_id,
(SELECT role_id FROM admin_role WHERE role_name = 'Administrators') parent_id,
2 tree_level,
0 sort_order,
'U' role_type,
(SELECT user_id FROM admin_user WHERE username = 'ashish') user_id,
'ashish' role_name
Execute the above SQL in you DB which will create new user in your system with ashish as a user name and 12345678 as password login with this and check if menu is available or not. if it is available then check permission of you role and make changes in that account. you can change the user name.
Hope this will help you.