phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'aec23f0f762c2b8c8cce084ed7e29f2a' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('aec23f0f762c2b8c8cce084ed7e29f2a', -1, 1784369167, 1784369167, 'd849d922', 1, 0, 0)

Line : 187
File : sessions.php