phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1f620ee8b9cc3535e98004c6792d4a75' 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 ('1f620ee8b9cc3535e98004c6792d4a75', -1, 1775091767, 1775091767, 'd849d8bb', -4, 0, 0)

Line : 187
File : sessions.php