phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '217cba41a12b8ef3f8c06163ebb61237' 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 ('217cba41a12b8ef3f8c06163ebb61237', -1, 1771407555, 1771407555, 'd849d802', 0, 0, 0)

Line : 187
File : sessions.php