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)=(ac06916dfb23fcd6c0b64fc9ac28cb7f) 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 ('ac06916dfb23fcd6c0b64fc9ac28cb7f', -1, 1714246974, 1714246974, '12dd5521', -4, 0, 0)

Line : 187
File : sessions.php