phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a3c88b09e84013087b781d79c397223e' 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 ('a3c88b09e84013087b781d79c397223e', -1, 1714191553, 1714191553, '1275b796', -4, 0, 0)

Line : 187
File : sessions.php