PHP Warning: include_once(): open_basedir restriction in effect

I have migrated a site from one host to another, on this site there is a crm working or at least used to work. Since the migration was done the link to the crm responded with error500-internal server error and I contacted the host in order to check it. They said they fixed it and now it shows me the following

PHP Warning: include_once(): open_basedir restriction in effect. File(/var/www/vhosts/mysite.com/httpdocs/crm/includes/adodbtime/adodb-time.inc.php) is not within the allowed path(s): (G:/PleskVhosts//mysite.com\;C:\Windows\Temp) in G:\PleskVhosts\mysite.com\httpdocs\crm\filefunc.inc.php on line 229

PHP Warning: include_once(/var/www/vhosts/mysite.com/httpdocs/crm/includes/adodbtime/adodb-time.inc.php): failed to open stream: Operation not permitted in G:\PleskVhosts\mysite.com\httpdocs\crm\filefunc.inc.php on line 229

PHP Warning: include_once(): Failed opening '/var/www/vhosts/mysite.com/httpdocs/crm/includes/adodbtime/adodb-time.inc.php' for inclusion (include_path='G:\PleskVhosts\mysite.com\httpdocs/htdocs') in G:\PleskVhosts\mysite.com\httpdocs\crm\filefunc.inc.php on line 229

PHP Warning: file_exists(): open_basedir restriction in effect. File(/var/www/vhosts/mysite.com/httpdocs/crm/core/lib/functions.lib.php) is not within the allowed path(s): (G:/PleskVhosts//mysite.com\;C:\Windows\Temp) in G:\PleskVhosts\mysite.com\httpdocs\crm\filefunc.inc.php on line 231

I'm using plesk panel and I'm really new to this. The solutions I came up with require changes to the php.ini file that I have no access to. Before I contact the host again I thought I would ask here first.

I'm showing the code on those lines to if it is a bit of help:

if (! defined('ADODB_DATE_VERSION')) include_once ADODB_PATH.'adodb-time.inc.php';

if (! file_exists(DOL_DOCUMENT_ROOT ."/core/lib/functions.lib.php"))