Please can you follow this steps to try to get more information:
Go to Admin - > Server - Debugging
Select show all errors
Check display errors
Go back to your report and check if there are debugging lines in the page, if so, paste it here
Please can you follow this steps to try to get more information:
Go to Admin - > Server - Debugging
Select show all errors
Check display errors
Go back to your report and check if there are debugging lines in the page, if so, paste it here