Thanks Janusz. Well actually I'm not sure it was coincidence or not when I tried to login into the system I got the following message
"Incorrect Password
The user and password combination is not valid for the system.
If you are not an authorized user, please contact your system administrator to obtain an account to enable you to use the system.
Try again"
I thought it was MySQL problem because at the moment MySQL service was not running and I could not start it, after that I Googled and came across that thread in MySQL forum about the error 1067 with no clear solution. I've uninstalled MySQL and then reinstalled created new company in FA ( I loss previous one, because I could not login) and it worked.
But this morning again this message
"Incorrect Password
The user and password combination is not valid for the system.
If you are not an authorized user, please contact your system administrator to obtain an account to enable you to use the system.
Try again"
But this time MySQL service is running and I'm able to login into the database from command line utility.
I don't not what's the problem and what to do. Why FA doesn't let me in? the password is remembered by a browser so there is no chance of misspelling it.
Giorgi