i can't disable gift voucher

i am using 3.0.2.0

I have to to extension >> order totals >> voucher
tried to disable it and save. it tell me is is successfully. but it still show it is enable.

i tried to uninstall this extension but in cart page. it is still there.

i tried to refresh dashboard cach, and extension modification refresh, it still on my view cart page.

what can i do in this case?

Nothing can be done until see the code, but you can hide that div using css so it will not appear in your cart page. Hope it helps.

try change the "sort " to 0, save it, if you see this change happened, go change to "Disable" ,save again, should be fine now. I did this way successfully