The v0.75 version of Feed and Grow: Fish, in particular, has been plagued by several issues. Players have reported encountering bugs, glitches, and crashes while playing the game. Furthermore, the cracked version has been known to contain malware and viruses, which can compromise the player's computer and personal data.
If you are running this specific version and experiencing technical problems, here are the most effective fixes identified by the community: Compatibility Mode