how can we fix this.

Cryptoguard has detected ransomware activity in the computer.
You may have to open a support ticket for analysis and Diagnosis.

Request you to follow the steps given in the below article under "Malicious Behavior"

https://support.sophos.com/support/s/article/KB-000036336?language=en_US#:~:text=finished%20your%20investigation.-,Malicious%20behavior,-The%20Threat%20Graph

Cryptoguard has detected ransomware activity in the computer.
You may have to open a support ticket for analysis and Diagnosis.

Request you to follow the steps given in the below article under "Malicious Behavior"

https://support.sophos.com/support/s/article/KB-000036336?language=en_US#:~:text=finished%20your%20investigation.-,Malicious%20behavior,-The%20Threat%20Graph