phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd8176dd4aeed56fad9422b7df69cd8bf' 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 ('d8176dd4aeed56fad9422b7df69cd8bf', -1, 1759012908, 1759012908, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php