Cannot add new router on new version Router OS

[axmad386]

Describe the bug
Cannot add Router with valid data on Newer version of RouterOS

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Network->Router->New Router'
2. Fill valid router data
3. Save
4. Error will shown

Invalid username or password supplied.

#0 /home/dmuggle/FL/phpnuxbill/system/autoload/Mikrotik.php(24): PEAR2\Net\RouterOS\Client->__construct()
#1 /home/dmuggle/FL/phpnuxbill/system/controllers/routers.php(159): Mikrotik::getClient()
#2 /home/dmuggle/FL/phpnuxbill/system/boot.php(337): include('...')
#3 /home/dmuggle/FL/phpnuxbill/index.php(22): require_once('...')
#4 {main}

Expected behavior
New Router is saved

Additional context
Router OS version: v6.42.12.

Workaround
Just update Client.php to dev branch
https://github.com/pear2/Net_RouterOS/blob/develop/src/PEAR2/Net/RouterOS/Client.php
See this related issue pear2/Net_RouterOS#37

[ibnux]

Everything working fine

[axmad386]

Are you sure sir? Which RouterOS version you are using? Because in my case I cannot log in without using pear/Net_RouterOS dev version

[ibnux]

if it error, all user will report to me
and my billing still working, you have bad configuration

https://t.me/phpnuxbill