phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9b4c9941fd47cf2e23e7d9e5e4bb0fc9' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9b4c9941fd47cf2e23e7d9e5e4bb0fc9', -1, 1715170897, 1715170897, 'c0a80201', -1, 0, 0)

Line : 187
File : sessions.php