phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '2e64f4ce5fb2530c3be9b98d0c8257a8' 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 ('2e64f4ce5fb2530c3be9b98d0c8257a8', -1, 1766151719, 1766151719, 'd849d8d7', -4, 0, 0)

Line : 187
File : sessions.php