phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5c02ef1eda43ac4ab942ed380c29073d' 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 ('5c02ef1eda43ac4ab942ed380c29073d', -1, 1788992791, 1788992791, 'd849d94f', 10, 0, 0)

Line : 187
File : sessions.php