You can play there with the non league version if you are not going to use their anti cheat client. The current LC public release does not support their anti cheat client, a bypass for that is already in beta phase and will be available in the near future, but there is no precise date I can give you.
Select non league 25$/month
https://leaguecheats.com/wiki/csgo-payment-option-page/
 
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