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")=(203663bee3c00fcc00d59872a500ff53) 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 ('203663bee3c00fcc00d59872a500ff53', -1, 1784706261, 1784706261, 'd849d8fc', 0, 0, 0)

Line : 187
File : sessions.php