phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8b5ccd7707e6ccc39c2d7374c030734e' 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 ('8b5ccd7707e6ccc39c2d7374c030734e', -1, 1760072766, 1760072766, 'd849d8d6', -4, 0, 0)

Line : 187
File : sessions.php