Hello again Bach 
Thank you for your reply/update. I don’t think it’s related to your Windows 10 Pro Russian version at all 
I got your main.log file as well and have checked it.
As can see from that log file you sent, I noticed the following lines (when the DevKinsta was trying to setup new site qwertynew database )
[2023-01-13 05:10:30.289] [info] [containerExec] Command 'mysql -u root -p****** -e "create database qwertynew;"' on devkinsta_db finished with exit code 1
[2023-01-13 05:10:30.297] [info] [ProgressIndicator] { isFailed: false, isOpen: false }
[2023-01-13 05:10:30.290] [error] [ipcMainStep] Error in operation SITE_CREATION, step database: Error: Error (1): UERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
that seems to be related to the wrong password issue for that root DB user, which could be the reason why it stopped on that 2nd step “Something bad happened” (when it was trying to create MySQL database) - as shown on your screenshot initially.
Could you please open your Docker desktop, and there on the Containers section, please click that container name devkinsta_db , and then click on the “Inspect” tab ?
After that, check on the Environment → MYSQL_ROOT_PASSWORD section and note/copy that MySQL root password shown there.
Once noted/copied (let’s say on notepad text editor for example), back to that Docker Desktop (same devkinsta_db container) and click on the “Terminal” tab.
There, please perform this mysql command line manually (no space after -p and replace YOURMYSQLROOTPASS with the actual password you got from that Inspect tab above) :
mysql -u root -pYOURMYSQLROOTPASS -e “create database qwertynewtest;”
and see if it returns any error?
Or you may also want to simply try to login to that mysql with root user, with this command line:
mysql -u root -p
you will then be prompted to enter the password, and see if you can login with the MYSQL Root Password you got from the Inspect tab above.
If it’s not working (and you get ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)), then it’s something with the ROOT MYSQL password related issue set in that DB container.
I also have also checked in our internal communication/history for similar error above, and 1 of our DevKinsta developers recently mentioned that the wrong password issue still happens quite frequently.
There he suggested to stop DevKinsta, removing all the containers and starting DevKinsta again (but I think you have done this and no effect still).
And he also then mentioned there, if that still didn’t work, he suggested to back up everything (sites and databases), clean up DevKinsta completely (all folders, containers, network, volumes), and then start from scratch and recover from the backups. But since you don’t have any sites yet, you don’t have to perform any backup/restore.
So if it’s still not working (and you’re not able to connect to that MySQL DB with that root mysql password), I think you may want to double check and make sure to remove and clean-up DevKinsta completely (also remove any folders/data related to it, all containers, network volumes, etc.), may also want to remove/delete anything inside these folders (e.g.: C:\Users\youruseraccount\AppData\Roaming\DevKinsta , and C:\Users\youruseraccount\DevKinsta ) and start from scratch.
Cheers,
Agus
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