phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7506b4b47c992588bf4a065415cdb107' 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 ('7506b4b47c992588bf4a065415cdb107', -1, 1764532167, 1764532167, 'd849d825', -4, 0, 0)

Line : 187
File : sessions.php