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)=(4f195d9a37be61fd06010a71df86521f) 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 ('4f195d9a37be61fd06010a71df86521f', -1, 1713869767, 1713869767, '1277a09a', -4, 0, 0)

Line : 187
File : sessions.php