phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a8f5f93849de1d6aa3fc5baebf593e77' 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 ('a8f5f93849de1d6aa3fc5baebf593e77', -1, 1741085140, 1741085140, '12bedbf1', 0, 0, 0)

Line : 187
File : sessions.php