Yes, that could definitely cause problems.
If possible, please try installing it only for the administrator user and see if you get the same error.
Otherwise, you would have to manually create those root users. In step 4 [here], you would just replace “ALTER” with “CREATE” (Creating new Site, something bad happened - #5 by Kevin)
docker exec -it devkinsta_reset_mariadb_root mysql mysql -e “FLUSH PRIVILEGES; CREATE USER ‘root’@‘%’ IDENTIFIED BY ‘PASSWORD_HERE’;
CREATE USER ‘root’@‘localhost’ IDENTIFIED BY ‘PASSWORD_HERE’;
GRANT ALL PRIVILEGES ON . TO ‘root’@‘localhost’ IDENTIFIED BY ‘PASSWORD_HERE’;
GRANT ALL PRIVILEGES ON . TO ‘root’@‘%’ IDENTIFIED BY ‘PASSWORD_HERE’;FLUSH PRIVILEGES;”