phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a2b0fb05d361d772f4e37fb214dd6c54' 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 ('a2b0fb05d361d772f4e37fb214dd6c54', -1, 1769482067, 1769482067, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php