phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ebf9cb1ff33a7648e5867194a1aebea8' 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 ('ebf9cb1ff33a7648e5867194a1aebea8', -1, 1765364710, 1765364710, 'd849d8de', -4, 0, 0)

Line : 187
File : sessions.php