phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'bd5780ea1177d5e70abd2b67b7f6cd8c' 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 ('bd5780ea1177d5e70abd2b67b7f6cd8c', -1, 1770606179, 1770606179, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php