phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c51dba9b2de695a54bd78a3720dfd6e4' 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 ('c51dba9b2de695a54bd78a3720dfd6e4', -1, 1714198200, 1714198200, '038593fc', -4, 0, 0)

Line : 187
File : sessions.php