phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1d8db5419b52c7f84acd35dccbc76ef6' 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 ('1d8db5419b52c7f84acd35dccbc76ef6', -1, 1774561190, 1774561190, 'ba02a013', -2, 0, 0)

Line : 187
File : sessions.php