Help me please:(The sims 3 script error 0...

I am using window 7 Professional .When I was opening "The Sims 3 launcher", it cannot work,and a pop-up window showed "Script Error

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Line:0
Char: 0
Error😕cript error
Code: 0
URL: http://be.sponsorpay.com/assets/web_client.js
[yes] [no]

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Next,I search http://be.sponsorpay.com/assets/web_client.js.

It wil show a box said Do you want to open or save web_client.js(111KB) from be.sponsorpay.com

[open] [save] [cancel]

Then,I click save the file.It just show me

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Script:       C:\Users\Vicky\Desktop\web_client.js

Line:       1

Char:      1

Error:      'window'Not defined

Code:      800A1391

Source:   Microsoft JScript     The implementation of the phaes error

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I am seeking for assistance, anyone can help me to solve this problem, thanks. ( I only install some sims3pack,I didn't install packages or mods...I don't want to install The sims 3 again.

Because I had suffer script error once,and I only delete The sims 3 ,not another version.

When I install The sims 3 again,it is work.But before a time ,the game is lag.