As mentioned above, somehow during the 3.0.3 update a small number of users had migration issues with the database. The database schema needed an upgrade for the isFTF field, which was a very small change. We never saw this issue in months of testing, so sadly it shows in the public version. Because of this migration failure the geocache records became corrupted. This is why you cannot load your old sql file and why things crash, as Cachly could not load the entire DB file.
Again, very sorry about this issue.