phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'be801bffc96ac0eeb13307b0fd88b77c' for key 'PRIMARY'

INSERT INTO fiziki2letnik2009_10_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('be801bffc96ac0eeb13307b0fd88b77c', -1, 1753708970, 1753708970, 'd849d8f0', 40, 0, 0)

Line : 187
File : sessions.php