Get any invitation rewards using Charles. [I know, it's not permanent, but it's fun !]

-Tools needed-
-Charles
-Mozilla FireFox or Google Chrome
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Steps:
1) Open Ninja Saga
2) Open Charles
3) Turn on Breakpoints when you're gonna press the invitation button
4) Go back to ninja saga, then Play
5) Turn on the breakpoints.
6) Click the invitation button (Left side of the Gift Bag)
7) Execute 1 time.
8) Go to edit response then AMF.
9) Find fb_invite_record
10) Click at the side of the folder [Look like an arrow]
11) You see a number 0, right? Change it to any amount, make sure it is more than 25.
12) Execute
13) Claim reward
14) Execute 1 time
15) See error at charles right? Error 901?
16) To avoid the error, change its type to boolean then change from false to true.
17) Change the status from 0 to 1.
18 Execute.
19) enjoy.