Hikashop fresh installation can't save

-- HikaShop version -- : 4.0.2
-- Joomla version -- : 3.9.3
-- PHP version -- : 7.2

Hello!

I installed Hikashop latest version, and when i click "save" in configuration page, the page crashed and i got the error:
"Forbidden
You don't have permission to access /new/administrator/index.php on this server.
Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request."

This happened in two different websites. Any idea why this happens?

Thank you in advance

Request: POST /new/administrator/index.php?option=com_hikashop&ctrl=config
Action Description: Access denied with code 403 (phase 2).
Justification: Pattern match "<\\?(?!xml\\s)" at ARGS:config_address_format.

Maybe its a false one by modsecurity. Is it? If yes i can disable that rule

SecRule ARGS|ARGS_NAMES|REQUEST_COOKIES|REQUEST_COOKIES_NAMES|XML:/*|!ARGS:/body/|!ARGS:/content/|!ARGS:/description/|!ARGS:/message/|!ARGS:optionsQuery|!ARGS:Post|!ARGS:desc|!ARGS:text|!REQUEST_COOKIES:/__utm/|!REQUEST_COOKIES:/_pk_ref/ "<\?(?!xml\s)" \
"id:211220,msg:'COMODO WAF: PHP Injection Attack||%{tx.domain}|%{tx.mode}|2',phase:2,capture,block,setvar:'tx.points=+%{tx.points_limit4}',ctl:auditLogParts=+E,t:none,t:htmlEntityDecode,t:compressWhitespace,t:lowercase,rev:3,severity:2,tag:'CWAF',tag:'Generic'"

So is it ok if I disable the rule? (modsec rule)