Hello Katarina,
Would you mind checking two things -
1. Does user have rights to export the data in the excel? If No, I would request you to please assign the same -
2. Has the user signed in on the connector? (please refer below screenshot - This is before signing in - I.e., Data is coming blank)
3. If the user has not signed in, please click on sign in icon shown in above screenshot. Sign in via Business Central's Login. Or your login. Once the login is identified by Excel, System will start a process of fetching the data.
In case if you have query with respect to Add-ins :
You can Click on File Button (Available on Top Left)
Next - Click on Option (Available on Bottom Left)
Next - Click on Add-Ins (Available on Middle Left)
Next - Drop down option is visible with the name " Manage", User selects drop down option, Click on "Disabled Items" to verify if there's any disabled add-ins wrt to Microsoft Dynamics.
i hope these solution helps you out, If not, Please share a screenshot from your end and I'll try to assist you as much as i can.
Regards
Karan