phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4d276d3b98357a93f2ff1f0e7526890d' 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 ('4d276d3b98357a93f2ff1f0e7526890d', -1, 1767001910, 1767001910, 'd849d82e', -4, 0, 0)

Line : 187
File : sessions.php