unless you have any ideas how i can find it?

First let's assume you've got the MP3s on your PC's hard disk. Now look at your whole collection and decide which files are your own good rips, and which files are dreck downloaded from the internet (if any). Begin your search in the latter subset.

Then go through and start looking at the tags on the files. Excessively large tags (such as those which include album cover JPGs embedded in the tags) have been known to cause problems.

Then analyze the files with one or more of these tools and see if they show any anomalies.

If you find anything suspicious in your search, then try to queue up one of those files on the player and see if it crashes.