phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3978ab15c5a2c7294817e84784a18512' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('3978ab15c5a2c7294817e84784a18512', -1, 1753847080, 1753847080, 'd849d8b4', 5, 0, 0)

Line : 187
File : sessions.php