phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '90c0f7e165c57e47088db25a2e9850c5' 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 ('90c0f7e165c57e47088db25a2e9850c5', -1, 1757872547, 1757872547, 'd849d822', -4, 0, 0)

Line : 187
File : sessions.php