The best way to get help with something like this is to write to
FLEx_...@sil.org (copied). In all likelihood, they will ask you for a backup of your project, since there just isn’t enough information here to know what is happening. Plenty of people are able to parse words, so this is not a general problem with FLEx, but rather (probably) a problem relating to your specific database.
This list is a great place to ask questions that other users could help with, but
FLEx_...@sil.org is specifically for technical help like this.
-Beth