phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'eb1807bd6dbf913a8b77f93a703d33f3' 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 ('eb1807bd6dbf913a8b77f93a703d33f3', -1, 1766202632, 1766202632, 'd849d8d7', -4, 0, 0)

Line : 187
File : sessions.php