Anki Droid sync error with private server based on CentOS7

[ZJha]

I set up a private anki server follow below link. I can sync data from windows 10 anki client. But when I try to sync from android mobile phone. It always pop-up incorrect username or password. Any one can help me. Thanks.

link:https://github.com/tsudoko/anki-sync-server#anki-20