Showing all entries produce error

Hi there,
i have a table with over 8.000 entries (until now, data will rise in future). In some cases i have to export all of them to Excel, therefor i set the lengthMenu to:

"lengthMenu": [[10, 25, 50, 250, -1], [10, 25, 50, 250, "All"]],

It works fine until i use the "All" statement. With "All" i get the following error:

Unable to get property 'length' of undefined or null reference

Can anybody help me? Normally it makes no sense to show all 8.000 entries on the webpage, but i have to export them all to Excel. Perhaps someone knows a better way.