Hello,
For some time now, only from a computer with Windows 10 installed, I can no longer access the operator panel of osticket.
I have an installation on IIS served by ArubaBusiness with PHP ver. 7.4.21 and osticket v. 1.15.3.1.
After entering user and password (working on another computer) appears the message Veryifing and the browser remains blocked. Both the browser of the working computer and the one of the computer that has problems are set as Italian language.
I also tried to clean the cookies but without success.

From the IIS log I get these messages:

2021-08-01 10:44:40 2.227.148.50 304 GET /js/jquery-3.5.1.min.js 65ca4e6 HTTP/2.0 https://support.thebetterway.it/scp/login.php Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 215 IIS Login
2021-08-01 10:44:40 2.227.148.50 304 GET /js/jquery-ui-1.12.1.custom.min.js 65ca4e6 HTTP/2.0 https://support.thebetterway.it/scp/login.php Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 215 Login IIS
2021-08-01 10:44:40 2.227.148.50 304 GET /scp/images/osticket-grey.png - HTTP/2.0 https://support.thebetterway.it/scp/login.php Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 215 IIS Login
2021-08-01 10:44:40 2.227.148.50 304 GET /scp/logo.php login HTTP/2.0 https://support.thebetterway.it/scp/login.php Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 350 IIS Login
2021-08-01 10:45:01 PHP Parse error: syntax error, unexpected '|', expecting variable (T_VARIABLE) in D:\home\thebetterway.it\support.thebetterway.it\include\class.auth.php on line 1105 php_error
2021-08-01 10:45:40 2.227.148.50 500 POST /scp/login.php - HTTP/2.0 https://support.thebetterway.it/scp/login.php Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 0 0 IIS Login
2021-08-01 10:48:08 PHP Warning: file_exists(): open_basedir restriction in effect. File(D:/home/thebetterway.it) is not within the allowed path(s): (D:/home/thebetterway.it\;C:\Windows\Temp) in D:\home\thebetterway.it\support.thebetterway.it\include\class.translation.php on line 738 php_error
2021-08-01 10:48:08 2.227.148.50 200 GET /scp/index.php _pjax=%23pjax-container HTTP/2.0 https://support.thebetterway.it/scp/index.php Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 25.0 K IIS Login
2021-08-01 10:50:01 PHP Parse error: syntax error, unexpected '|', expecting variable (T_VARIABLE) in D:\home\thebetterway.it\support.thebetterway.it\include\class.auth.php on line 1105 php_error

How can I solve the problem?
Thank you.