phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b1a34f94a41241ae9a1b09634af87a70' 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 ('b1a34f94a41241ae9a1b09634af87a70', -1, 1770927589, 1770927589, 'd849d821', -9, 0, 0)

Line : 187
File : sessions.php