The most common cause for this error code is security software incorrectly flagging Filmora as a threat.
Third-party security software (like McAfee or Bitdefender) may flag Filmora's startup process as suspicious. : Temporarily disable your firewall or antivirus. wondershare filmora 100091 fixed
Once you have successfully fixed the error, follow these best practices to avoid recurrence: The most common cause for this error code