: Do not install TeknoParrot in protected system folders like C:\Program Files . Use a root directory like C:\TeknoParrot Have you checked your antivirus quarantine for any files recently removed from the TeknoParrot folder?
If you suspect deep OS corruption (rare), try running TeknoParrot in Windows Sandbox (Pro/Enterprise editions). If it works there, your main OS has a serious file system or permission issue.
For the arcade preservationist, this error is a rite of passage. It is the digital equivalent of turning the key in an ignition and hearing only a click. But unlike a dead car battery, Error 3 points to a very specific, often frustrating breakdown in the chain of communication between your operating system and the game you are trying to run.