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)=(21b75b88d9016a714e3d2e6dd219c31d) 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 ('21b75b88d9016a714e3d2e6dd219c31d', -1, 1714077516, 1714077516, '12de79aa', 274, 0, 0)

Line : 187
File : sessions.php