Database error : No such file or directory when trying to login

[y3sc2t3]

Expected behavior

Login to i-doit using URL http://localhost:8080/ or http://localhost:8080/i-doit/ or http://localhost:8080/i-doit/admin/

Actual behavior

The error "Database error : No such file or directory" appears.
The command "docker-compose logs|grep denied" give the following output:
db_1 | 2020-11-01 0:29:17 8 [Warning] Access denied for user 'root'@'i-doit-docker_idoit_1.i-doit-docker_backend' (using password: YES)
db_1 | 2020-11-01 0:29:17 9 [Warning] Access denied for user 'root'@'i-doit-docker_idoit_1.i-doit-docker_backend' (using password: YES)

Steps to reproduce the behavior

Build a new docker installation using docker-compose-fpm.yml and .env.dist only changing IDOIT_WEB_PORT=8080.

Environment

Question	Answer
i-doit version	1.15.1
i-doit edition	open
PHP version	7.4
Service	fpm

Server logs

db_1 | 2020-11-01 0:29:17 8 [Warning] Access denied for user 'root'@'i-doit-docker_idoit_1.i-doit-docker_backend' (using password: YES)
db_1 | 2020-11-01 0:29:17 9 [Warning] Access denied for user 'root'@'i-doit-docker_idoit_1.i-doit-docker_backend' (using password: YES)

[y3sc2t3]

Here is some additional information on my environment:

docker --version

Docker version 19.03.13, build 4484c46d9d

docker-compose --version

docker-compose version 1.27.3, build 4092ae5d

cat /etc/debian_version

10.6

uname -a

Linux xxxxxxxx 4.19.0-12-amd64 #1 SMP Debian 4.19.152-1 (2020-10-18) x86_64 GNU/Linux