Try using this url in your browser
127.0.0.1/phpmyadmin
If that works then the issue is with IPV4/IPV6 the ::1 in the log indicates you are being routed over IPV6 but the security for phpmyadmin does not contain knowledge of that IPV6 localhost address.
So edit \wamp\alias\phpmyadmin.conf and look in the <Directory... section of that file and change as follows
You didn't mention which version of WAMPServer etc you were using (helpful if you do in future) so :-
If you are running
Apache 2.2.x change this line
Allow from 127.0.0.1
To
Allow from 127.0.0.1 localhost ::1
If you are running
Apache 2.4.x change
Order Deny,Allow
Deny from all
Allow from 127.0.0.1
To
Require local
This is the new Apache 2.4 syntax!
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(Windows 10 Pro 64bit) (Wampserver 3.3.4 64bit) Aestan Tray Menu 3.2.5.4
<Apache versions MULTIPE> <PHP versions MULTIPLE> <MySQL Versions MULTIPLE>
<MariaDB versions MULTIPLE> <phpMyAdmin versions MULTIPLE> <MySQL Workbench 8.0.23>Read The Manuals Apache --
MySQL --
PHP --
phpMyAdminGet your Apache/MySQL/mariaDB/PHP ADDONs here from the
WAMPServer alternate Repo-X-X-X-
Backup your databases regularly Here is How dont regret it later! Yes even when developing -X-X-X-