phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '31110cbedd18d0e3b1085ecee83c04fe' 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 ('31110cbedd18d0e3b1085ecee83c04fe', -1, 1765702438, 1765702438, 'd849d836', -4, 0, 0)

Line : 187
File : sessions.php