Hello,
What do you mean “I already complete the all of step and Translation progress is 0%”?
Do you mean that you just created translation files for your language but did not translate them? After the creation of the translation files you need actually translate them. We have some partial translations https://www.8theme.com/forums/xstore-wordpress-support-forum/xstore-translation-files-sharing/
What language do you need?
Regards