phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '242519c459e3cbda2c3e4a7e0ef76a14' 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 ('242519c459e3cbda2c3e4a7e0ef76a14', -1, 1770117242, 1770117242, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php