Delete the stray BIN file. Run the emulator with just the ISO. If it still fails, re-dump or re-acquire the ISO.
This article provides a deep dive into what the UMD data.bin file is, why gamers search for it, the legal and safety implications of downloading these files, and how to properly manage your PSP game data. umd data.bin download
: Click Save and choose .ISO or .CSO (compressed) format. Frequently Asked Questions Delete the stray BIN file