phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8b04327807d57dd82621248a74b5d1ad' 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 ('8b04327807d57dd82621248a74b5d1ad', -1, 1768077721, 1768077721, 'd849d887', -9, 0, 0)

Line : 187
File : sessions.php