phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5d9c7a581c0438b97b9544572e8e1013' 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 ('5d9c7a581c0438b97b9544572e8e1013', -1, 1786539647, 1786539647, 'd849d88a', -4, 0, 0)

Line : 187
File : sessions.php