Benoît

Seems like the same problem as #211, I will investigate on this as soon as I can

Seems like the setup has not been fully completed, can you try to trigger it again ? (delete the `customgrid_setup` row in the `core_resource` table when your website is under...

Was it actually a version upgrade rather than a first-time install ? Because in the upgrade case, the solution is different from re-triggering an install : update the `customgrid_setup` row...

You need to create a grid type model (check `BL_CustomGrid_Model_Grid_Type_Cms_Block` for a simple example), and register it in the `etc/customgrid.xml` file of your module, with this minimal code : ```...

Can you test with a lower `sort_order` in your grid type definition ? (there may be a bug preventing user-defined grid types from being used in certain cases, no matter...

The error you point out corresponds to a security check from Magento (and you can find more about it [here](https://www.yireo.com/tutorials/magento/magento-administration/1322-client-denied-by-server-configuration-appetclocalxml)), can you check in the exceptions log from Magento instead...

Actually after verification I'm not sure that the exceptions are being logged when such errors occur, they may rather be directly displayed within the error message. Can you paste here...

Sorry for the late answer ! I've made some more search, and actually the message "Failed to edit value" without a descriptive text is only used when the Ajax request...

Can you check which HTTP status code is received for the Ajax request ? (by using the network tab of your browser developer tools)

Seems like it could be a permissions problem, can you check the permissions of your role ? (this would mean that the edit button sometimes appears whereas it should not,...