phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9c04a023cab9c9105e64189306318f12' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9c04a023cab9c9105e64189306318f12', -1, 1763499356, 1763499356, 'd849d830', -9, 0, 0)

Line : 187
File : sessions.php