phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd6d12b027809ea5484c747ff9e80a1bc' for key 'PRIMARY'

INSERT INTO rainyday_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d6d12b027809ea5484c747ff9e80a1bc', -1, 1772261064, 1772261064, 'd849d824', 1, 0, 0)

Line : 187
File : sessions.php