From the looks of things, I believe (meaning this is untested) the reason you're getting this error is because *
has a special meaning inside of a regex. It denotes the previous character as something that may occur zero or more times. Unfortunately, your's is empty -- it doesn't have anything to match. (Maybe your *.
is in the wrong order?)
Try putting something in front:
That would matching anything that ended in .ORD_API_log. Of course, as someone else mentioned, it'd be easier to check the end and just forget about the beginning:
Hope this helps,