Users likely need "Visible" access to the Salesforce Probability (%) field if they encounter these errors when trying to access opportunity records in Cirrus Insight:
1. From Salesforce Setup, engage the Object Manager tab.
2. Open Opportunity from the list.
3. From the left-side menu, choose Fields and Relationships.
4. Search for and select Probability (%).
5. Click the Set Field-Level Security button.
6. Check the Visible box for the affected user's profile.
7. To reflect the changes, either refresh Cirrus Insight org-wide from the Dashboard or direct the user to refresh Cirrus Insight from Settings.