Maybe since there seems to be a difference in your .lua than other people who have used the fix mentioned above.
Instead of setting the cash shop usable to 0 you should try the other linked fix...
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Or edit your etc lua so it has no other option than to return premium true in the is_premium function
Instead of setting the cash shop usable to 0 you should try the other linked fix...
[Only registered and activated users can see links. Click Here To Register...]
Or edit your etc lua so it has no other option than to return premium true in the is_premium function