phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1b6a16e6b1ce962dee9e6dd0ecaf9b3e' 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 ('1b6a16e6b1ce962dee9e6dd0ecaf9b3e', -1, 1765232487, 1765232487, 'd849d8bc', -4, 0, 0)

Line : 187
File : sessions.php