phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '245d2bea8aa8f542d509ec16b00d2184' 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 ('245d2bea8aa8f542d509ec16b00d2184', -1, 1770256092, 1770256092, 'd849d83c', -9, 0, 0)

Line : 187
File : sessions.php