phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : -1 ERROR: duplicate key value violates unique constraint "phpbb_session_pkey" DETAIL: Key (session_id)=(c7c9a2d084607324884ee423dcc8a878) already exists.

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c7c9a2d084607324884ee423dcc8a878', -1, 1715296770, 1715296770, '127601e8', -7, 0, 0)

Line : 187
File : sessions.php