phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a7a6e86aa09dd5dda8a0c6fb46ccb6f2' 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 ('a7a6e86aa09dd5dda8a0c6fb46ccb6f2', -1, 1716401246, 1716401246, 'c0a80201', -2, 0, 0)

Line : 187
File : sessions.php