phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '88fa6d167f20d96f0d0957d6ee6f2412' 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 ('88fa6d167f20d96f0d0957d6ee6f2412', -1, 1762072065, 1762072065, 'd849d870', -9, 0, 0)

Line : 187
File : sessions.php