phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f19e1705d763a4f2e922519624f9858f' 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 ('f19e1705d763a4f2e922519624f9858f', -1, 1770207159, 1770207159, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php