error in first configuration

Hello I have downloaded the projeqtorV6.5.6
I have put it in my hosting server running php 7.1.14 MySQL, v10.2.12
I run the configuration for the first time...
edited the data for connection to DB database I had created with new db user and pass and the email data (did nothing to ldap section)

when I press ok i get the error Technical issue occured possibly due to bad network connection.<br/>Please try again.<br/>If issue persists&#44; please contact your administrator.
I am using firefox and I cannot understand where is the problem.

these are the error line in logs files
from plesk platform

POST /tool/configCheck.php?destinationWidth=882&destinationHeight=70&isIE= HTTP/1.0

ModSecurity: Access denied with code 403 (phase 2). Pattern match "(?i:\\\\b(?:m(?(?:ysaccessobjects|ysaces|ysobjects|ysqueries|ysrelationships|ysaccessstorage|ysaccessxml|ysmodules|ysmodules2|db)|aster\\\\.\\\\.sysdatabases|ysql\\\\.db)\\\\b|s(?:ys(?:\\\\.database_name|aux)\\\\b|chema(?:\\\\W*\\\\(|_name\\\\b)|qlite(_temp)?_master\\\\b) ..." at ARGS:value[SslKey]. [file "/etc/httpd/conf/modsecurity.d/rules/comodo/24_SQL_SQLi.conf"] [line "74"] [id "218530"] [rev "3"] [msg "COMODO WAF: SQL Injection Attack: Common DB Names Detected||project.giagiasdev.eu|F|2"] [data "Matched Data: database ( found within ARGS:value[SslKey]: Location for SSL Key file for SSL connexion to MySql database (keep empty unless you know what it is)"] [severity "CRITICAL"] [tag "CWAF"] [tag "SQLi"] [hostname "project.giagiasdev.eu"] [uri "/tool/configCheck.php"] [unique_id "Wp1eZCHjPV9BC8KWOlKndwAAAJQ"]

My data for mysql db that I created
db server db60.grserver.gr:3306
dbname dimipsar045784_project
dbuser projectusr
dbpass thepassIgave

so in config I wrote

Database type : 'mysql'
Database host : db60.grserver.gr
Database port : 3306
Database user to connect : projectusr
Database password for user : thepassIgave
Database schema name : dimipsar045784_project
Name to be displayed : ProjeQtOr

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