phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8d3aee01a6865ff9230a76f496b9fb7e' 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 ('8d3aee01a6865ff9230a76f496b9fb7e', -1, 1776443070, 1776443070, 'd849d8d0', 1, 0, 0)

Line : 187
File : sessions.php