phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '73472bb13d014265ed2f62d441482ee1' 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 ('73472bb13d014265ed2f62d441482ee1', -1, 1768557376, 1768557376, 'd849d834', -4, 0, 0)

Line : 187
File : sessions.php