Problems with OpenWrt installation on Xiaomi Mini Wifi

Dear OpenWRT
I am trying to install OpenWRT on xiaomi mini wifi but is having issues. I try to follow the link below but I am having error. Can anyone with experience assist me. My error are as below

http://192.168.31.1/cgi-bin/luci/;stok=f09190b96a2690fe658cc89be86ceb27/web/home#router

http://192.168.31.1/cgi-bin/luci/;stok=f09190b96a2690fe658cc89be86ceb27/api/xqnetwork/set_wifi_ap?ssid=Xiaomi&encryption=NONE&enctype=NONE&channel=1%3Bnvram%20set%20ssh_en%3D1%3B%20nvram%20commit
Error {"msg":"未能扫描到指定WiFi","code":1617}

http://192.168.31.1/cgi-bin/luci/;stok=f09190b96a2690fe658cc89be86ceb27/api/xqnetwork/set_wifi_ap?ssid=Xiaomi&encryption=NONE&enctype=NONE&channel=1%3Bsed%20-i%20"%3Ax%3AN%3As%2Fif%20\[.*\%3B%20then\n.*return%200\n.*fi%2F%23tb%2F%3Bb%20x"%20%2Fetc%2Finit.d%2Fdropbear
Error {"msg":"未能扫描到指定WiFi","code":1617}

http://192.168.31.1/cgi-bin/luci/;stok=f09190b96a2690fe658cc89be86ceb27/api/xqnetwork/set_wifi_ap?ssid=Xiaomi&encryption=NONE&enctype=NONE&channel=1%3B%2Fetc%2Finit.d%2Fdropbear%20start
Error {"msg":"未能扫描到指定WiFi","code":1617}

http://192.168.31.1/cgi-bin/luci/;stok=f09190b96a2690fe658cc89be86ceb27/api/xqsystem/set_name_password?oldPwd=12345678&newPwd=87654321
Error {"code":1523,"msg":"参数错误"}

https://openwrt.org/toh/xiaomi/miwifi_mini

Appreciate everyone that helps
Thanks
GJQ