phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9964771dc44ccab3803a94cd35496d18' 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 ('9964771dc44ccab3803a94cd35496d18', -1, 1714344370, 1714344370, '03913ca6', -10, 0, 0)

Line : 187
File : sessions.php