If your WordPress have gotten or corrupted and do have forgot the primary email, you may refer to the following step to reset your password.
Step 1 : Login into cPanel
Step 2 : Under the Databases section, click on phpMyAdmin.
Step 3 : Click on the name of your WordPress database.
Step 4 : Next click on the wp_users table.
Step 5 : Click on Edit beside your WordPress admin user.
Step 6 : In the user_pass field, paste your password by pressing Ctrl - V. From the drop-down, select MD5.
Finally click on Go.
Step 7 : You should now see a success message from phpMyAdmin saying the database record was updated.
Step 8 : You will be able to login with the mentioned user username and new password.