phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78a0aef09a3d5c8b064482a34fd877d6' 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 ('78a0aef09a3d5c8b064482a34fd877d6', -1, 1714317216, 1714317216, '031196a3', -4, 0, 0)

Line : 187
File : sessions.php