every time I tap on " tap to try" to test a code, it shows this error: google play services error

Answer 1

I think this may have to do with US sanctions on Iran (I'm not familiar with what is or isn't embargoed). Tap to try is a pro feature for newer users (it's free for older users).

Answer 2

If you want to buy pro the information here may be helpful for you:
https://www.sololearn.com/discuss/2885604/?ref=app

Answer 3

but I need to practice