phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f43db96ba5689029e583b2f2eda5c2ea' 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 ('f43db96ba5689029e583b2f2eda5c2ea', -1, 1770186374, 1770186374, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php