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)=(a3939734135c4bb824ddeef99e3e627f) 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 ('a3939734135c4bb824ddeef99e3e627f', -1, 1714099183, 1714099183, '12d85e98', -4, 0, 0)

Line : 187
File : sessions.php