I attached an image with an error screen I get with dev pro when developing. Is this the only error screen that shows?

It really sucks not knowing the specific type of error it is. If i refresh the page, I see for a slight second another error page show with actual info then this one covers it up. 

Why does this error page come up for almost any error?

What PHP version is your website running? If you do not know make a .php file with the following code in it, and load it on your website. It seems like your website is not running or cannot access the PDO library.

 

code:

<?PHP
phpinfo();
?>