phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '661221d0eae73cedb7cf014c3fd8f259' 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 ('661221d0eae73cedb7cf014c3fd8f259', -1, 1765832944, 1765832944, 'd849d836', -4, 0, 0)

Line : 187
File : sessions.php