phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '51e9608a3c80071819fdb81debc3906c' 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 ('51e9608a3c80071819fdb81debc3906c', -1, 1715779660, 1715779660, '12df1d3e', -2, 0, 0)

Line : 187
File : sessions.php