phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : -1 ERROR: duplicate key value violates unique constraint "phpbb_session_pkey" DETAIL: Key (session_id)=(9255fc9fb1ab9cf52bcb0be80e0f9ea7) already exists.

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9255fc9fb1ab9cf52bcb0be80e0f9ea7', -1, 1713909189, 1713909189, '0d3a7001', -4, 0, 0)

Line : 187
File : sessions.php