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)=(967400e1bc37bad4ca457801a4b776bf) 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 ('967400e1bc37bad4ca457801a4b776bf', -1, 1714050553, 1714050553, '0390ac73', -4, 0, 0)

Line : 187
File : sessions.php