LoL Mastery Manager has stopped working

[ZyGaming]

Downloading Champion.gg data. This may take little while. Aatrox Top
This far I can get with this software, if anybody knows the fix, tell me please 👍 Thanks.

[survfate]

@platywompus care to help us with this?

[OnlineWise]

:(

[ale3x21]

:(

[J-a-n-n]

Hey guys , you can check my fork

J-a-n-n@c2a4efc#diff-7d73edd3339c5da7d2462c397e03586a

just change the code with the new attribute

[ale3x21]

Not working your fork