phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '945a3fdd50b753056c9e500ed2526407' 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 ('945a3fdd50b753056c9e500ed2526407', -1, 1766109136, 1766109136, 'd849d819', 4, 0, 0)

Line : 187
File : sessions.php