phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '761fb75c05b9d6bf4383c1a64d95ca74' 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 ('761fb75c05b9d6bf4383c1a64d95ca74', -1, 1767059976, 1767059976, 'd849d82e', -4, 0, 0)

Line : 187
File : sessions.php