phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1c550b4aa9302942b410e003eb0e0928' 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 ('1c550b4aa9302942b410e003eb0e0928', -1, 1766184924, 1766184924, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php