phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b7e20822140e252a974c2b7cd8594b5e' 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 ('b7e20822140e252a974c2b7cd8594b5e', -1, 1764660519, 1764660519, 'd849d818', -4, 0, 0)

Line : 187
File : sessions.php