HTTP-error 500 when clicking on "Sign Guestbook"

[dewebel]

Script URL: http://www.aaronvanriet.nl/gbook/gbook.php
Version of script: 1.7
Hosting company:
URL of phpinfo.php: http://www.aaronvanriet.nl/phpinfo.php
URL of session_test.php: http://www.aaronvanriet.nl/session_test.php
What terms did you try when SEARCHING for a solution: sign page, form, error 500

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After a server switch, done by the hosting company , I get a HTTP-error 500 when clicking on "Sign Guestbook"

Phpinfo doesn't work anymore on this server.
The scripts session_test.php and session_test2.php also don't seem to work.

Does anyone know a solution

[Klemen]

You will need to check with your hosting company why even simple PHP files like phpinfo.php don't work. Maybe a permissions issue?

[dewebel]

Hello Klemen, thanks for your reply

I assume you don't mean the CMOD (files have 644).
Phpinfo is disabled again on this new server. Disabled again, because in the past I asked the host to enable it and he did.

Session_test.php doesn't work, some PHP function is disabled but what function exactly?

[Klemen]

It's not a problem with the function, your PHP files aren't opening properly at all. No idea why.