I have lost and regain administration two or three times more since then from live USB & chroot enviroment, manipulate sudoers file with above instructions and with passwd users eachother and last with {sudo su - passwd root}. Once again now i face same problem by rejections admin password and root password. When OS reject most of times we take rejection as default and we dispute our memory. But there is cases that system is wrong and this is for me. It’s been 20+ days i haven’t got stable internet. Absence of updates system collapse. And by my ignorance to ask or to push for downloadings and corrections, i believe that i make it worst. With compination that Manjaro try to preserve it functions and
image! 
The result is that nothing seems wrong with first sight. With my experience neither with 3nd or 4th sight. So everything seems right except bellow a lot of tasks are broke. Mirrors could’t update their data, neither reset. But i think that this is for other post. Thanks for the help. I feel that i must run a Clamscan and whatever can do more, do it offnet, and back when it comes my normal connection.
Sorry for every inconsistency but i am out of time also with my berverage shop with main connection 20 days.