phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b2e513e2f78619b8b97fd32a2ac79f3a' 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 ('b2e513e2f78619b8b97fd32a2ac79f3a', -1, 1773898696, 1773898696, 'd849d815', -4, 0, 0)

Line : 187
File : sessions.php