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)=(83f4d990fcf17ce4ff4bf78f403ff410) 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 ('83f4d990fcf17ce4ff4bf78f403ff410', -1, 1715170975, 1715170975, '12dc0d46', -9, 0, 0)

Line : 187
File : sessions.php