|If that's not it, you might consider posting (or searching for yourself) the actual, exact error message|
"always show up errors"
.. is what's known as vague (as opposed to specific)
Believe it or not, there can be many different errors - in order to troubleshoot effectively, the exact error and perhaps its context (what you are doing when it occurs) can be very helpful
We've heard that a million monkeys at a million keyboards could produce the complete works of Shakespeare; now, thanks to the Internet, we know that is not true