my phpbb forum was migrated to another hosting plan (-> server name changed).
Now I cannot access the forum anymore because i receive the following error:
SQL ERROR [ mysqli ]
php_network_getaddresses: getaddrinfo failed: Name or service not known 
An sql error occurred while fetching this page. Please contact an administrator if this problem persists."
I googled a little bit and apparently I have to change the DB path with the new server name but I can't find where to do that.
Can someone help me please?