phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '977272a7925537530906c08712100551' 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 ('977272a7925537530906c08712100551', -1, 1757290783, 1757290783, 'd849d82c', 2, 0, 0)

Line : 187
File : sessions.php