KeePass file resources error

I use KeePass for BlackBerry as my password manager. I store the database on my SD card. But after I access the program a few times, the next time I open it I get a "File system out of resources". I can't access the program and the only resolution is to reboot.

Other threads related to this error were about people using up their device memory with photos/videos or leaky apps. I realize that KeePass must be using up the "resources", but I have 301 MB free all the time. I'm guessing the database is being copied into the device memory/RAM and it's not being closed properly.

Anyone else have this issue, or know how to solve the problem?