phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '87c15c4395ac9d52aadb1a1493b3c49d' 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 ('87c15c4395ac9d52aadb1a1493b3c49d', -1, 1714040444, 1714040444, '0391082a', 9, 0, 0)

Line : 187
File : sessions.php