class.template.php generates error in eval()?

[jptimone]

Warning: Invalid argument supplied for foreach() in C:\...\eSupport\includes\SmartyLight\class.template.php(899) : eval()'d code on line 173

Sometimes this pop-ups when I do some changes in templates, don't know what is wrong? Line 173 in class.template.php is empty but line 899 says following (red text is line 899):

		ob_start();
		if ($silent)
		{
			$evalreturn = @eval(' ?>' . $output . '<?php return true;');			
		} else {
			$evalreturn = eval(' ?>' . $output . '<?php return true;');			
		}
		$output = ob_get_contents();
		ob_end_clean();

Using:
- eSupport v3.00.90
- PHP 5.1.4
- MySQL 4.1.21

Has this something to do with cache?

[supportskins]

Re-upload the files in binary format and it should resolve the issue.