phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '687178f4a2c34d5dbb66cb017b7cf3e8' 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 ('687178f4a2c34d5dbb66cb017b7cf3e8', -1, 1713495048, 1713495048, '038dc0db', -4, 0, 0)

Line : 187
File : sessions.php