PHP counter werkt niet meer volledig na PHP upgrade

<?php
/*
# THIS FILE NEEDS NO CONFIGURATION - DO NOT ALTER ANY OF THE CODE ON THIS PAGE
#
##############################################################################
*/
	error_reporting(E_ALL & ~ (E_NOTICE));
	$menuvar=$_POST["menuvar"];
	$admin_user_name=$_POST["admin_user_name"];
	$admin_password=$_POST["admin_password"];
	$owner_email=$_POST["owner_email"];
	$customcount_url=$_POST["customcount_url"];
	include ("functions.php");
?>

<?php
break;
case 'validate_execute':
	error_reporting(0);                                                    
	$write_test_file='datafiles/ud.dat';                    
	if (!$twf=fopen($write_test_file, "w")) {
		$form_action='nothing';
		$message_a='CustomCount set-up encountered a problem when attempting to write to the data files.';
		$message_b='You will probably need to set permissions (CHMOD) on these files and possibly also the folders in which they reside.';
		$message_b.='&nbsp;Please refer to the file
		<a href="http://www.customcount.co.uk/documentation/file_permissions.html" target="_blank">File Permissions</a>
		for instructions on how to proceed.';
		$b_align='left';
		$button_message="";
		$submit='<input type="button" name="Button" value="OK" onClick="javascript:self.close();">';
		include("messaging.php");
		exit();
	}
	fclose($twf); 
                             
	ValidateEmail($owner_email);                                                
	NumAlphaOnly ($admin_user_name);                
	if ($num_alpha_invalid=="1") $UserInvalid="1";
	NumAlphaOnly ($admin_password);                  
	if ($num_alpha_invalid=="1") $PassInvalid="1";
	if ($UserInvalid=="1" or $PassInvalid=="1") {
		$message_a="Please use only alphanumeric characters in your user name and/or password.";
	}
	elseif (trim($admin_user_name)=="") {
		$message_a="You have not entered your admin user name.";
	}
	elseif (trim($admin_password)=="") {
		$message_a="You have not entered your admin password.";
	}
	elseif ($EmailInvalid=="1" or !$owner_email) {
		$message_a="Your e-mail address appears to be in an invalid format, or is not entered.";
	}
	elseif (trim($customcount_url)=="") {
		$message_a="You have not entered the &quot;customcount.php&quot; file URL.";
	}

	if ($message_a) {
		$owner_email=preg_replace("/[|\"'\]/","", $owner_email);
		$count_page_name=preg_replace("/[|\"'\]/","", $count_page_name);
		$customcount_url=preg_replace("/[|\"']/","", $customcount_url);
		if (!$message_b) $message_b="Please return to the form and check/re-enter the item.";
		$form_action="setup.php";
		$hidden_fields="<input type='hidden' name='menuvar' value=''>";
		$hidden_fields.="<input type='hidden' name='admin_user_name' value='$admin_user_name'>";
		$hidden_fields.="<input type='hidden' name='admin_password' value='$admin_password'>";
		$hidden_fields.="<input type='hidden' name='owner_email' value='$owner_email'>";
		$hidden_fields.="<input type='hidden' name='customcount_url' value='$customcount_url'>";
		$button_message="Return to form&nbsp;&nbsp;";
		$submit="<input type='submit' name='submit' value='Go!'>";
		include("messaging.php");
	}  
	if (!$message_a) {                                                            
		$owner_email=trim(preg_replace("/[|\"'\]/","", $owner_email));
		$count_page_name=trim(preg_replace("/[|\"'\]/","", $count_page_name));
		$customcount_url=trim(preg_replace("/[|\"']/","", $customcount_url));
		$admin_user_name=trim(base64_encode($admin_user_name));                      
		$admin_password=trim(base64_encode($admin_password));

		$ignore_hits="no";
		$before_count_phrase="This site has received";
		$after_count_phrase="visits to date.";
		$email_frequency="25";
		$counter_type="text";
		$unique_visitors="no";

		$image_folder_url=str_replace("customcount.php", "images/", $customcount_url);
		$writefile ="datafiles/count_data.dat";                            
		$wf=fopen($writefile, "w");
		$count_data=$ignore_hits."|";
		$count_data.=$email_frequency."|";
		$count_data.=$unique_visitors."|";
		$count_data.=$customcount_url."|";
		$count_data.=$image_folder_url."|";
		fwrite($wf, $count_data);
		fclose($wf);
		$writefile ="datafiles/ud.dat";                                        
		$wf=fopen($writefile, "w");
		$user_data=$admin_user_name."|";
		$user_data.=$admin_password."|";
		$user_data.=$owner_email."|";
		fwrite($wf, $user_data);
		fclose($wf);
		if ($setup_issues=="1") {
			$message_a="CustomCount was unable to complete all of the set-up procedures - see the next screen for details.";
		}
		elseif (!$setup_issues) {
			$message_a="The counter and all necessary files were created successfully.";
		}
		$message_b="Click the &quot;Go!&quot; button to continue the set-up process.";
		$form_action="menu.php";
		$hidden_fields="<input type=\"hidden\" name=\"pass\" value=\"1\">";
		$hidden_fields.="<input type=\"hidden\" name=\"menuvar\" value=\"setup\">";
		$hidden_fields.="<input type=\"hidden\" name=\"js_no_copy\" value='$js_no_copy'>";
		$hidden_fields.="<input type=\"hidden\" name=\"setup_issues\" value='$setup_issues'>";
		$hidden_fields.="<input type=\"hidden\" name=\"ccid\" value='$ccid'>";
		$button_message="";
		$submit="<input type=\"submit\" name=\"submit\" value=\"Go!\">";
		include("messaging.php");
	}  
	break;
}  
?>

<?php
/*
# THIS FILE NEEDS NO CONFIGURATION - DO NOT ALTER ANY OF THE CODE ON THIS PAGE
#
##############################################################################
*/
	error_reporting(E_ALL & ~ (E_NOTICE));
	$menu_var=$_POST["menu_var"];
	$authorised=$_POST["authorised"];
	$try_name=$_POST["try_name"];
	$try_pass=$_POST["try_pass"];
	$log_off=$_POST["log_off"];
	if ($log_off) $authorised="";                  
	include ("functions.php");
	get_user_data();
	$sub_title="Log-in";
?>

 <?php
break;
case "validate_execute":
	$TryName=HTMLSpecialChars($TryName);
	$TryPass=HTMLSpecialChars($TryPass);
	$admin_user_name=base64_decode($admin_user_name);
	$admin_password=base64_decode($admin_password);
	if (trim($try_name!=$admin_user_name)) {                              
		$message_a="You have not entered the correct user name.";
	}
	elseif (trim($try_pass!=$admin_password)) {
		$message_a="You have not entered the correct password.";
	}
	if($message_a) {
		$message_b="Please return to the form and check/re-enter the item.";
		$form_action="login.php";
		$hidden_fields="<input type='hidden' name='menu_var' value=''>";
		$hidden_fields.="<input type='hidden' name='pass' value='1'>";
		$hidden_fields.="<input type='hidden' name='try_name' value='$try_name'>";
		$hidden_fields.="<input type='hidden' name='try_pass' value='$try_pass'>";
		$button_message="Return to form&nbsp;&nbsp;";
		$submit="<input type='submit' name='submit' value='Go!'>";
	}
	else {
		$message_a="Your log-in details were accepted.";
		$form_action="menu.php";
		$hidden_fields="<input type=\"hidden\" name=\"pass\" value=\"1\">";
		$hidden_fields.="<input type=\"hidden\" name=\"menuvar\" value=\"menu\">";
		$button_message="Continue to the Admin Area&nbsp;&nbsp;";
		$submit="<input type=\"submit\" name=\"submit\" value=\"Go!\">";
	}  
	include("messaging.php");
	break;
}  
?>