phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a8d1b4c5f2fd5eaec0c646a5423f166b' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a8d1b4c5f2fd5eaec0c646a5423f166b', -1, 1714292898, 1714292898, '1275d8e5', -7, 0, 0)

Line : 187
File : sessions.php